Question

Some help would be nice! :)

Answer 1

90+18 gives you 108 and since a straight angle is 180, you have to subtract 108 from 180 which gives you 72.

Answer 2

Angle 3 is 72

Angle 4 is 18

Angle 5 is 90

Angle 6 is 72

Explanation:

Sum of straight angle is 180

So 180 = (90+18+x) for angle 3