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The measure of an angle is 172.2°. what is the measure of a supplementary angle?
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The measure of an angle is 172.2°. what is the measure of a supplementary angle?

User Daniel Brose
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1 Answer

3 votes
Supplementary angles are when they add two 180 degrees. Therefore, the formula for this is:

172.2° + x = 180°

180 - 172.2 = x

x = 7.8°
User DigiLord
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