This document discusses congruence of triangles, which is when two triangles have the same shape and size, meaning one triangle can be repositioned to coincide precisely with the other. It provides examples of congruent and non-congruent triangles based on equal angles and side lengths. The key properties for congruence of triangles are that they must have equal measures of angles and equal lengths of sides.

1. Congruence of Triangles
Made by Spandan B.

2. 1. What is congruence of triangles ?
2. Congruence of any two figures/pictures.
3. Example of Congruence of Triangles.
4. Properties of Congruency.
5. Properties of Congruence of Triangles.
6. Conclusion
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3. What is Congruence of Triangles ?
 In geometry, two figures are congruent if
they have the same shape and size.
 This means that either object can be
repositioned so as to coincide precisely with
the other object.
 More formally, two sets of points are called
congruent if, and only if, one figure can be
transformed into the other.

4. Are we Congruent ?
 Are the following picture congruent ?
 Let’s paste picture 1 on picture 2

5. Am I Congruent to You ?
 The following figures may be identical in content
but they aren't identical in size.
 Fig .1 is slightly larger in size.
Fig.1 Fig.2

6. The first set is equal which is known as congruent.
But the set below is not equal, therefore not congruent.

7. Let’s move on to congruence of
triangles.

8. Find the set of triangles which are
not Congruent.

9. The figures must be equal in either the ---
Measure of the angles
The length of the sides
To make an triangle
congruent the above are
necessary.

10. Conclusion
Triangle ABC and Triangle DEF are congruent.
If two triangles have the
same measure (angles and
sides) they are said to be
congruent.