Question

isosceles triangle theorem​

Answer 1

$\huge\purple {\mathfrak{Bonjour Mate!}}$The Isosceles Triangle Theorem states: If two sides of a triangle are congruent, then angles opposite those sides are congruent. To mathematically prove this, we need to introduce a median line, a line constructed from an interior angle to the midpoint of the opposite side.

Answer 2

Answer:

So here once again is the Isosceles Triangle Theorem: If two sides of a triangle are congruent, then angles opposite those sides are congruent. ... If angles opposite those sides are congruent, then two sides of a triangle are congruent.