Question

A

85°
O A. 45
o
E
O B. 32.5
B
C. 52.5
D. 65
SUBMIT

Answer 1

A

Explanation:

The formula for external arc measures ia 1/2(x-y) where x is 85 and y is the smaller arc. Knowing the actual angle measurement, we can see that we have 1/2(85 - y) = 20; y = 45. Answer A is your answer.