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Total amount of the interior angles of a 20 sided figure?

User Coolwater
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2 Answers

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Hello,

The sum of interior angles of an isocagon is 18*180=3240 (°)
User Dave Jackson
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The number of interior angles in any polygon is the same as the number
of its sides. So your 20-sided figure has 20 interior angles.
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Wait ! Are you asking what the measures of the angles add up to ? ?

The sum of the interior angles of any polygon is

(180 degrees) times (2 less than the number of sides).

So your 20-sided figure has interior angles that add up to

(180 degrees) times (18) .
User Sarah Rushworth
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