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A

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

A 85° O A. 45 o E O B. 32.5 B C. 52.5 D. 65 SUBMIT-example-1

1 Answer

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Answer:

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.

User Cristiano Sousa
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