The equality of triangles is called the congruence of triangles.
There are some types of triangles in geometry. In some cases, the triangles may have same properties, which make them equal geometrically. The word “equal” is expressed by another word “congruence” in mathematics.
The triangles are called congruent triangles when their corresponding angles are equal and also the lengths of their corresponding sides are equal.
There are five possible criteria in geometry for the congruence of triangles.
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