Question

two angles of an isosceles triangle are 50 degrees. What is the size of the third angle?

Answer 1

Step-by-step explanation:

Given : <A =50

<B=50

Angle sum property of triangle=180

50+50+ <C=180

<C=80.

hope. it helps

Answer 2

Let's consider ΔABC as an isosceles triangle.

Given two angles, suppose ∠A and ∠B are 50° each.

We know that, sum of angles of a triangle = 180°

So, 50°+50°+∠C= 180°

100°+∠C= 180°

∠C= 180°-100°

∠C= 80°

Therefore, the measure of the third angle is 80°