Question

How many sides a regularpolygon has if exterior angle is 45?

Answer 1

Your answer is here

Sum of all exterior angles of a regular

polygon = 360°

Each exterior angle = 45°

Number of exterior angles = 360/45

= 8

Hence, number of sides of the regular

polygon = 8

Answer 2

Sum of exterior angle of any polygon is 360°. As each exterior angle is 45, number of angle or sides of polygon is 360° 45°=8. Further as each exterior angle is 45 , each interior angle is 180°-45°=135°.