Work Step by Step
We know that the sum of the interior angles is given by: Sum=180∗(n−2) Where n is the number of sides. Thus, for the given problem, we have: Sum=180∗(20−2) 3240
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.