Question

What is the measure of ∡U in the figure shown? ∘

Answer 1

∠ U = 70°

Explanation:

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

120° is an exterior angle of the circle , then

∠ U + 50° = 120° ( subtract 50° from both sides )

∠ U = 70°