Q3 of 153 Page 148

The complement of 72°40’ is

As we know that sum of two complementary – angles is 90^o.

So, x + y = 90^o

72°40’ + y= 90

y = 90^o – 72°40’

y = 17^o20’

If two angles are complements of each other, then each angle is

An angle which measures more than 180° but less than 360°, is called

The supplement of 54°30’ is

The measure of an angle is five times its complement. The angle measures