Question

Please help me solve this. Just number 16.

Answer 1

Smaller angle = 70 degrees

Explanation:

Supplementary angles = add up to 180 degrees

let x = bigger angle

smaller angle = (x/2) + 15

x + (x/2) + 15 = 180

x + 0.5x + 15 = 180

1.5x = 165

x = 110

180 - 110 = 70

or

(x/2) + 15 = (110/2) + 15 = 55 + 15 = 70