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39 votes
The measure of an angle is 18.2°. What is the measure of its complementary angle?

User HeroCC
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2 Answers

25 votes
25 votes

Answer: 71.8

Step-by-step explanation: Complementary angles are two angles whose measurements add up to 90 degrees. So, the unknown angle is 90 - 18.2 =71.8 degrees. You can check if you got it right by adding the two angles together to make sure it comes out at 90.

User Tirno
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16 votes
16 votes

Answer:

71.8 degrees

Explanation:

Complementary angles are 2 angles that sum up to 90 degrees

So in this case we know an angle that is 18.2 degrees

90 - 18.2 = 71.8

71.8 degrees on the other angle

User Yeva
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3.1k points