![]() ![]() The complementary and supplementary angles are those that add up to 90 degrees and 180 degrees respectively. When non-adjacent complementary angles are put together, they form a right angle.Ĭomplementary Angles and Supplementary Angles Thus, these two angles are non-adjacent complementary angles. Also, they add up to 90 degrees that is, ∠ABC + ∠PQR = 50° + 40° = 90°. In the figure given below, ∠ABC and ∠PQR are non-adjacent angles as they neither have a common vertex nor a common arm. Non-adjacent Complementary Angles: Two complementary angles that are NOT adjacent are said to be non-adjacent complementary angles. Thus, these two angles are adjacent complementary angles. ![]() They also add up to 90 degrees, that is ∠COB + ∠AOB = 70° + 20° = 90°. In the figure given below, ∠COB and ∠AOB are adjacent angles as they have a common vertex "O" and a common arm "OB". There are two types of complementary angles in geometry as given below:Īdjacent Complementary Angles: Two complementary angles with a common vertex and a common arm are called adjacent complementary angles. If the sum of two angles is equal to the measurement of a right angle then the pair of angles is known as the complementary angle.
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