Thank you for the opportunity to help you with your question!

A regular nonagon has 9 sides of equal length

Formula for interior angle of a regular polygon = 180*(n-2)/n degrees

n represents number of sides in regular polygon

here, n = 9

so, angle = 180*(9-2)/9 = 180*7/9 = 140 degrees

Answer is Option A. 140 degrees

Secure Information

Content will be erased after question is completed.

Enter the email address associated with your account, and we will email you a link to reset your password.

Forgot your password?

Sign Up