Class 7 · Chapter 7
Congruence of Triangles
Congruence rules SSS, SAS, ASA, RHS.
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Detailed theory
Two figures are congruent if they have exactly the same shape and size. One can be placed on the other to coincide fully. Corresponding parts are equal.
Key concepts & formulas
01
Congruent figures have exactly the same shape and size.
02
SSS: three sides equal congruent.
03
SAS: two sides and included angle equal congruent.
04
ASA: two angles and included side equal congruent.
05
RHS: right angle, hypotenuse, one side equal in right triangles congruent.