Question

an angle is1/5 of its supplement. what is degree measure of the angle

Answer 1

Let angle be x
So it's supplement is 180-x

Given x= 1/5*(180-x)

----> 5x=180-x
6x=180
x=30

The answer is 30°

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Answer 2

Answer:

Let the measure of its supplement be x°. Then,

other angle = x/5

x + x/5 = 180

=> 5x + x/5 = 180

=> 6x/5 = 180

=> x = 180 × 5/6

=> x = 150

Hence , the measure of its supplement is 150°.

The other angle = 150°/5 = 30°

Step-by-step explanation: