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The name tells you how many sides. If you are given one external angle, say A, then you know that the number of sides multiplied by A =360 since the sum of the exterior anlges is 360. If you are given the sum of the interior angles, you can find the number of side using the formula that sum of interior angles =(number of sides-2)180 degrees.
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Earn +20 ptsQ: Calculating how many sides a Regular polygon has?
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How many sides does a polygon with an interior angle of 144 have?
If it is a regular polygon then it will have 10 sides
How many sides has the polygon if regular polygon is 180 degrees?
A regular polygon that has 180 degrees is an equilateral triangle.
IfEach exterior angle of a regular polygon measures 30 How many sides does the polygon have?
12 sides
How many sides does a polygon have if the interior angles equal 108?
Providing that it is a regular polygon it will have 5 sides
If the exterior angle of a regular polygon is 20 how many sides does the polygon have?
It has 360/20 = 18 sides
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