two angles are called complementary angles if the sum of their measure is 90°
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Complementary angle-
When the sum of a pair of an angle is 90°, it is known as a complementary angle.
Example
Angle 1=50°
to find the other angle we must subtract it from 90°
=90°-50°=40°
therefore 2nd angle=40°
therefore 50°&40° make a complementary pair
some more examples are
45°&45°
60°&30°
ets
When the sum of a pair of an angle is 90°, it is known as a complementary angle.
Example
Angle 1=50°
to find the other angle we must subtract it from 90°
=90°-50°=40°
therefore 2nd angle=40°
therefore 50°&40° make a complementary pair
some more examples are
45°&45°
60°&30°
ets
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