Complementary Angles

Right Angle	Acute Angle	Obtuse Angle	Zero Angle	Straight Angle
Complementary Angles	Supplementary angles	Adjacent Angles	Vertical / Vertical Opposite Angles	Linear Pair

When the sum of the measures of two angles is equal to 90°, then two angles are referred to as Complementary Angles. Below Figure represent Complementary Angles. In the Above Figure, ∠ ABC = 60° and ∠ PQR = 30°. Now, add both the angles and we get; ∠ ABC + ∠ PQR = 60° + 30° = 90° Since sum of measure of both the angles is equal to 90°, Therefore, ∠ ABC and ∠ PQR are Complementary Angles. Study More Solved Questions / Examples Can two acute angles be complementary to each other ? Explain. Check whether the following pair of angles is complementary to each other ? Can two obtuse angles be Complementary to each other? Explain. There are two Complementary angles; measure of one angle is 38. Find measure of other angle ? Are the following diagram of pair of angles Complementary to each other? Can two right angles be Complementary to each other ? Explain. Study the following diagram, ∠ x = 46°, find its Complementary ∠ y. Check the following pair and write which are complementary angles ? The difference in measure of two Complementary angles is 12° . Find the measures of the angles. Two angles are Complementary. Measure of one angle is twice the other. Find the measures of both the angles.