## Complementary anglesTwo angles are said to be if their sum is
90complementary^{o}. This makes them add up to a right angle.
In a right triangle,
the 2 angles other than the right angle are
complementary because they add up to 90 degrees.
(All the angles of a triangle add up to 180 ^{o}).Here's a problem for you: What is the measure of the missing angle in this right triangle? _______ degrees The missing angle (?) and the 45 degree angle are complementary. |