Question

How to calculate the interior angle sum whose interior angle of a regular polygon is 135 degrees

Answer 1

Answer:

A regular polygon has 8 sides

Step-by-step explanation:

Each interior angle of a polygon=135°

(2n-4)90°/n=135°

180°n-360=135°n

180°n-135°n=360°

45°n=360°

n=360°/45°

n=8

thus, a regular polygon has 8 sides