30. Each interior angle of a regular polygon is 4 times each exterior ang

(a) Find the size of each exterior angle of the polygon.

(b) Find the number of sides of the polygon.

(a) the size of each exterior angle 360/10=36

(b) the number of sides of the polygon. 10

Step-by-step explanation:

Each interior angle of a regular polygon is 4 times each exterior angle

∴sum of interior angles: (n-2) * 180=4*360

n-2=8

n=10

(a) the size of each exterior angle 360/10=36

(b) the number of sides of the polygon. 10