Q7 of 115 Page 9

An angle is equal to 8 times its complement. Determine its measure.

It is given that,

Angle = 8 times its compliment

Let x be the measured angle

Angle = 8 (Compliment)

Angle = 8 (90^o – x^o)

x = 720^o – 8x

9x = 720^o

x = 80^o

Two supplementary angles are in the ratio 4 : 5. Find the angles.

Two supplementary angles differ by 48°. Find the angles.

If the angles (2x-10)° and (x-5)° are complementary angles, find x.

If the complement of an angle is equal to the supplement of the thrice of it. Find the measure of the angle.