Question

Can you guys help me how to solve these problems step by step? Plzz

Answer 1

8-the formula to find an exterior angle of a polygon is:
360/n
(n is the number of sides of the polygon)

so the answer is 40
$\frac{360}{9} = 40$




9 - the formula to find an interior angle of polygon is:
$\frac{(n - 2) \times 180}{n}$
so the answer is 135
$\frac{(8 - 2) \times 180}{8} = \frac{6 \times 180}{8} = \frac{1080}{8} = 135$




good luck