Question

Find the number of sides of a regular polygon if it's angle is 1260

Answer 1

Answer:

sum of all angles in a polygon = (n-2)180

Step-by-step explanation:

this implies that,

(n-2)180=1260

n-2=7

n=9

therefore,

the number of sides in the  regular polygon is 9 (i.e. Nonagon)