Question

Find x of the triangle.

Answer 1

Answer: 130

Explanation:

180 = y + 50 + 80

y = 50

180 - y = x

x = 130

Answer 2

x = 130°

Explanation:

the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

x is an exterior angle of the triangle , then

x = 50° + 80° = 130°