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A regular polygon has n sides Each exterior angle is 5n/2 degrees find the value of n.

User Kamil W
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User Kurokirasama
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Answer:

12

Explanation:

The sum of the exterior angles of a polygon = 360°

Since there are n sides and each exterior angle =
(5n)/(2) , then

n ×
(5n)/(2) = 360 ( multiply both sides by 2 to clear the fraction )

5n² = 720 ( divide both sides by 5 )

n² = 144 ( take the square root of both sides )

n =
√(144) = 12

The polygon has 12 sides

User Keryn Knight
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