Question

Why is AC = AD how prove its isosceles triangle

Answer 1

Hey,

You can simply say that a triangle is an isosceles triangle if its two opposite sides of a triangle are equal or if the angles of those sides are equal.

Eg: In the given figure,

AB = BC

(OR)

∠A = ∠C

If one of these statements is given or proved then the triangle with no doubt will be an isosceles triangle.

Cheers!