Question

an angle is equal to eight times its supplement determine its measure.​

Answer 1

Answer:

20°

Step-by-step explanation:

Let the angle be x

it's supplement (as per the information given) = 8x

Since they're supplementary they'll add up to 180

x + 8x = 180

9x = 180

x = 20

Here x is the angle we're asked about

Hence, final answer is 20