![]() 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. However, supplementary angles do not have to be on the same line, and can be separated in space.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. Such angles are called a linear pair of angles. have a common vertex and share just one side), their non-shared sides form a straight line. If the two supplementary angles are adjacent (i.e. ![]()
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