There is question I did as a sum of my revision and do not itsi answer. Please can you help. The question is: Find the sum of all interior angles of a 11 sided regular polygon

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Solution

Sum of interior angles angles of a polygon = 180(n-2)
where n is the number of sides.
So sum of all interior angles of a 11 sided regular polygon
=180(11-2)
=180×9=1620°

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There is question I did as a sum of my revision and do not itsi answer. Please can you help. The question is: Find the sum of all interior angles of a 11 sided regular polygon

Sum of interior angles angles of a polygon = 180(n-2) where n is the number of sides. So sum of all interior angles of a 11 sided regular polygon =180(11-2) =180×9=1620°

Sum of interior angles angles of a polygon = 180(n-2)
where n is the number of sides.
So sum of all interior angles of a 11 sided regular polygon
=180(11-2)
=180×9=1620°