Question

find the measure of each interior angle. also, name the polygon​

Answer 1

Step-by-step explanation:

interior angle of a polygon

with n side ={180(n-2)}/n

here n=9

so,

angle= {180(9-2)}/9

angle= (180×7)/9

angle= 140°

#666

Answer 2

Answer:

It's a regular nonagon (9 sides)

The formula for calculating the sum of interior angles is ( n −2)   * 180°

Therefore, n= 9

(9-2) * 180°

= 7 * 180°

= 1260°

Thus each interior angle,

                                       1260/9

                                       = 140°