Question

Please help!!!!!!!!!!!
Find the measure of the exterior angle

Answer 1

c) 42°

exterior angle = sum of its opposite interior angles

Which means :-

`x + 21 + 63 = 3x`

`21 + 63 = 3x - x`

`21 + 63 = 2x`

`84 = 2x`

`2x = 84`

`x = 84 / 2`

`x = 42°`

Therefore , the correct option is :-

c) 42°

Answer 2

Im not sure but go with 24