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The sum of the measures of two exterior angles of a triangle is 278. What is the measure of the third exterior angle?
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The sum of the measures of two exterior angles of a triangle is 278. What is the measure of the third exterior angle?

The sum of the measures of two exterior angles of a triangle is 278. What is the measure-example-1
User GorillaMoe
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1 Answer

11 votes

Answer:

b 82

Explanation:

the sum of all exterior angles of a triangle is 360°.

so, we have already 278° for 2 angles. that leaves for the third angle

360 - 278 = 82°

User Ujju
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