Lesson 5: Geometry: Complementary Angles
Master complementary angles! Practice finding angles that add to 90 degrees.
COMPLEMENTARY ANGLES Complementary AnglesTwo angles are Complementary when theyadd up to 90 degrees (a Right Angle ).These two angles (40° and 50°) areComplementary Angles, because they add up to 90°:Notice that together they make a right angle . Complementary and Supplementary Angles Finding Complementary Angles Find the missing angle by subtracting the angle given by 90°.For example #1) 90°-30°= 60°Answer each question below the problem on the glowing dot.