Question

an isosceles triangle DEF , DE = DF. If measure of angle EDF= 76 degree then the measure of angle DEF = ?​

Answer 1

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In △ABC and △DEF

∠B=∠E (given)

∠C=∠F (Given)

∠A=∠D (third angle)

Thus, △ABC∼△DEF (AAA rule)

Given, AB=3DE Since, AB



=DE

The two triangles are similar but not congruent.