Is It True Or False? The Acute Angles Of Any Right Triangle Are Supplementary.

False.  By definition, supplemental angles add up to 180 degrees.  The interior angles of a triangle add up to 180 degrees.  There are 3 interior angles in a triangle; therefore no two angles in a triangle can ever be supplemental whether it is a right triangle or not.
 
This is a bit of a trick question to see if you know the difference between supplemental angles and complementary angles because the acute angles in a right triangle are complementary.  By definition, complementary angles add up to 90 degrees.  A right triangle has one 90 degree angle; therefore, the remaining two angles must add up to 90 degrees.
 

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False.  Because of the definition of supplementary angles.

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The answer is true 

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