Question

The vertex angle of an isosceles triangle measures 40°. Find the measure of both
base angles​

Answer 1

In isosceles triangle one is of different measure and other two of same measure

Answer 2

Answer:

A isosceles triangle has three angles, and their measures add up to 180 degrees.

• An isosceles triangle has at least 2 congruent sides, and the angles opposite the congruent sides are congruent :]

Given : The vertex angle of an isosceles triangle measures 40°.

Let the measure of each base angle be x beacuse the that Two angles measures the same.

$\sf =>x + x + 40 = 180$

$\sf => 2x + 40 = 180$

$\sf => 2x = 140$

$=>\underline{\boxed{\sf x = 70}}$

Therefore, The base angles measure 70°.