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 Math Central Quandaries & Queries
 Question from Ciara: What is the angle of it's own supplement?

Hi Ciara,

Two angles are supplementary if their sum of their measures is $180^{o}.$ Hence if two angles have measures $a$ and $b$ then they are supplementary if $a + b = 180^{o}.$ In your problem $a = b.$ Solve for $a.$

Penny

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