Question

1

What is the measure of angle x?
64°
X
45
109
64
180
71

Answer 1

A

Explanation:

64+45=109

180-109=71

180-71=109 *

*This step is only if you want to check your work!

Answer 2

A

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, thus

x = 64° + 45° = 109° → A