Congruence and Similarity of Triangles | Difference b/w Congruency & Similarity | Congruent Triangle
  • 4 years ago
Congruence and Similarity of Triangles | Difference b/w Congruency & Similarity | Congruent Triangle
This video is about difference b/w similarity and congruency. This video basically describes about some criteria according to which difference b/w congruency and similarity is stated like shape, size, real life examples , symbols, rules of congruency and similarity, how sides and angles are written in both cases. Various examples are taken in order to clear the concept.

Answer to following questions can be found in this video:
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Understand congruence and similarity using physical models, transparencies, or geometry software.

Understand that a two-dimensional figure is similar to another if the second can be obtained from the first by a sequence of rotations, reflections, translations, and dilations; given two similar two-dimensional figures, describe a sequence that exhibits the similarity between them.

What does it mean when two figures are similar?
What does it mean when two figures are congruent?
What is the difference between similarity and conrguence?
In this tutorial, you will learn the basic definitions of Congruent and similar objects or shapes in Mathematics, and the differences between the two. The explanation is very easy to understand as real life examples are used to explain the concepts. The topic is also part of Chapter 7, Triangles of Class 9 Maths NCERT book.

The following topics are covered in this tutorial, using paper cutouts and demonstrations :
Concepts of Congruent shapes
Concept of Similar shapes
Congruent shapes can be super imposed on each other.
Similar triangles have proportional sides
Corresponding angles of similar triangles have have the same measure
Congruence criteria for triangles, SAS, ASA, AAS, SSS, RHS
How to denote or notation for representing equal sides and angles.
Learning Goals: I am able to...
- determine if two triangles are congruent by using SSS, SAS, ASA or RHS congruence test
- determine if two triangles are similar by using AAA, SSS or SAS similarity test.
- solve geometry problems involving congruence and similarity.







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