Engineering Graphics Class Module 5 _ IIT Bombay Professor _Semester 1 and 2 _ Episode 29

Engineering Universe

Transcript

00:00you

00:30So this video is regarding the next chapter, that is Development of surfaces.

00:54The first section is called the basic developments, we have included 4 questions in the basic

01:00developments in the question bank.

01:03After that, the second section is called the 5.2 section, which is called the development

01:07of solids with, sorry, the development of sectioned solids.

01:12So, in this, first we have to know the basic developments, so what is the development of

01:17surfaces?

01:18We already know the solids, so in the figure I am showing now, I have shown 4 basic solids

01:24in this.

01:25One, we know our cylinder, then two, the prism corresponding to the cylinder, the same

01:31prism coming from the same boot, so I have taken the square prism in this, then two

01:36types of pyramids coming like that, I have taken the square pyramid here, then our basic

01:44cone.

01:45So, these are the 4 basic solids, 4 basic solids, because we know the cylinder, cylinder

01:52is only one thing, its diameter and height will give the cylinder, then we know the cone,

01:58if the base has a certain diameter and height, this is the cone, these two are okay, two

02:04basic solids.

02:05Then, the next two basics are, one is the prisms, so I have taken the square prism,

02:10now we have a lot of prisms, square prism, pentagonal prism, hexagonal prism, so our

02:16prism is coming from both the sides, so there are many types of prisms.

02:20Similarly, there are many types of pyramids, this is a pyramid with a base shape only,

02:26this is a square pyramid, this is a pentagonal, hexagonal, triangular, many types of pyramids.

02:31So, these are the 4 basic solids, 4 means cylinder, cone, that is only one type, then

02:38all the prisms and all the pyramids.

02:41So, as an example, I have taken only two squares, whichever you want.

02:45So, the development of the surface of these basic solids, I mean, if the surfaces around

02:52these solids, or if the surfaces around these solids, I think I am breaking this solid,

02:59if I break this solid and make it flat, how is the surface going to be?

03:05Now we know, this is already a 3D, these 4 rectangles, if you see, in this square prism,

03:11these 4 rectangles, if I select this common edge, if I select this edge, if I cut through

03:18this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

03:23through this edge, and if I cut through this edge, and if I cut through this edge, and

03:26if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

03:29and if I cut through this edge, and if I cut through this edge, and if I cut through this

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03:34this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

03:36through this edge, and if I cut through this edge, and if I cut through this edge, and

03:38if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

03:40and if I cut through this edge, and if I cut through this edge, and if I cut through this

03:42edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

03:43this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

03:44through this edge, and if I cut through this edge, and if I cut through this edge, and

03:45if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

03:46and if I cut through this edge, and if I cut through this edge, and if I cut through this

03:47edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

03:48this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

03:50through this edge, and if I cut through this edge, and if I cut through this edge, and

03:51if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

03:52and if I cut through this edge, and if I cut through this edge, and if I cut through this

03:53edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

03:54this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

03:55through this edge, and if I cut through this edge, and if I cut through this edge, and

03:56if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

03:57and if I cut through this edge, and if I cut through this edge, and if I cut through this

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04:00through this edge, and if I cut through this edge, and if I cut through this edge, and

04:01if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

04:02and if I cut through this edge, and if I cut through this edge, and if I cut through this

04:03edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

04:04this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

04:05through this edge, and if I cut through this edge, and if I cut through this edge, and

04:06if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

04:07and if I cut through this edge, and if I cut through this edge, and if I cut through this

04:08edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

04:30this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

04:49through this edge, and if I cut through this edge, and if I cut through this edge, and

05:16if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

05:45and if I cut through this edge, and if I cut through this edge, and if I cut through this

05:46edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

05:47this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

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05:49if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

05:50and if I cut through this edge, and if I cut through this edge, and if I cut through this

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05:54if I cut through this edge, and if I cut through this edge, and if I cut through this

06:05edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

06:17this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

06:24through this edge, and if I cut through this edge, and if I cut through this edge, and

06:31if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

06:38and if I cut through this edge, and if I cut through this edge, and if I cut through this

06:43edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

06:50this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

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07:02if I cut through this edge, and if I cut through this edge, and if I cut through this

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07:14this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

07:21through this edge, and if I cut through this edge, and if I cut through this edge, and

07:26if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

07:33and if I cut through this edge, and if I cut through this edge, and if I cut through this

07:40edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

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08:13this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

08:18through this edge, and if I cut through this edge, and if I cut through this edge, and

08:23if I cut through this edge, and if I cut through this edge, and if I cut through this

08:28edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

08:33this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

08:38through this edge, and if I cut through this edge, and if I cut through this edge, and

08:43if I cut through this edge, and if I cut through this edge, and if I cut through this

08:48edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

08:53this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

08:58through this edge, and if I cut through this edge, and if I cut through this edge, and

09:03if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

09:08and if I cut through this edge, and if I cut through this edge, and if I cut through this

09:13edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

09:18this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

09:23through this edge, and if I cut through this edge, and if I cut through this edge, and

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09:33and if I cut through this edge, and if I cut through this edge, and if I cut through this

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09:53if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

09:58and if I cut through this edge, and if I cut through this edge, and if I cut through this

10:03edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

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10:18if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

10:23and if I cut through this edge, and if I cut through this edge, and if I cut through this

10:28edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

10:33this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

10:38through this edge, and if I cut through this edge, and if I cut through this edge, and

10:43if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

10:48and if I cut through this edge, and if I cut through this edge, and if I cut through this

10:53edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

10:58this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

11:03through this edge, and if I cut through this edge, and if I cut through this edge, and

11:08if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

11:13and if I cut through this edge, and if I cut through this edge, and if I cut through this

11:18edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

11:23this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

11:28through this edge, and if I cut through this edge, and if I cut through this edge, and

11:33if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

11:38and if I cut through this edge, and if I cut through this edge, and if I cut through this

11:43edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

11:48this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

11:53through this edge, and if I cut through this edge, and if I cut through this edge, and

11:58if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

12:03and if I cut through this edge, and if I cut through this edge, and if I cut through this

12:08edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

12:13this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

12:18through this edge, and if I cut through this edge, and if I cut through this edge, and

12:23if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

12:28and if I cut through this edge, and if I cut through this edge, and if I cut through this

12:33edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

12:38this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

12:43through this edge, and if I cut through this edge, and if I cut through this edge, and

12:48if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

12:53and if I cut through this edge, and if I cut through this edge, and if I cut through this

12:58edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

13:03this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

13:08through this edge, and if I cut through this edge, and if I cut through this edge, and

13:13if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

13:18and if I cut through this edge, and if I cut through this edge, and if I cut through this

13:23edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

13:28this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

13:33through this edge, and if I cut through this edge, and if I cut through this edge, and

13:38if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

13:43and if I cut through this edge, and if I cut through this edge, and if I cut through this

13:48edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

13:53this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

13:58through this edge, and if I cut through this edge, and if I cut through this edge, and

14:03if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

14:08and if I cut through this edge, and if I cut through this edge, and if I cut through this

14:13edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

14:18this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

14:23through this edge, and if I cut through this edge, and if I cut through this edge, and

14:28if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

14:33and if I cut through this edge, and if I cut through this edge, and if I cut through this

14:38edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

14:43this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

14:48through this edge, and if I cut through this edge, and if I cut through this edge, and

14:53if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

14:58and if I cut through this edge, and if I cut through this edge, and if I cut through this

15:03edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

15:08this edge, and if I cut through this edge, and if I cut through this edge, and if I cut

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15:18if I cut through this edge, and if I cut through this edge, and if I cut through this edge,

15:23and if I cut through this edge, and if I cut through this edge, and if I cut through this

15:28edge, and if I cut through this edge, and if I cut through this edge, and if I cut through

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