In NCERT Solutions for class 9 chapter 7 maths, what does the concept of "congruence of triangles" signify?
NCERT Solutions for maths chapter 7 class 9 explain that "congruence of triangles" refers to the condition where two triangles are identical copies of each other and overlap perfectly when superimposed. In simpler terms, two triangles are considered congruent when the angles and sides of one triangle are equivalent to the corresponding angles and sides of the other triangle.