Question

Decide whether the statement is always, sometimes, or never true.


The two acute angles in a right triangle are supplementary.

Answer 1

Never true. In a right triangle, you have one 90 degree angle and two other angles. These two other angles must add up to 90 degrees (since a triangle has 180 degrees).

supplementary = 180 degrees when added
complementary = 90 degrees when added

It's impossible for a triangle to have two internal supplementary angles.