SOLUTION: A heptagon has seven sides. Caluculate the size of each interior angle. Please can anyone help me to solve this question.

Algebra ->  Polygons -> SOLUTION: A heptagon has seven sides. Caluculate the size of each interior angle. Please can anyone help me to solve this question.      Log On


   

Question 206720This question is from textbook Longman mathematics for IGCSE book1
: A heptagon has seven sides.
Caluculate the size of each interior angle.

Please can anyone help me to solve this question. This question is from textbook Longman mathematics for IGCSE book1

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A heptagon has seven sides.
Caluculate the size of each interior angle.
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The sum of interior angles of any polygon with n sides is (n-2)*180º
(7-2)*180 = 900.
If it's a regular heptagon, then each angle is 900/7 degrees
= ~ 128.57º