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Question

if each interior angle of a regular polygon is 144 degree, find the no. of sides of the polygons.

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Solution

Let n be the number of sides of regular polygon.Now, measure of each interior angle = sum of all the anglesn144 = n-2×180n180n - 360 = 144n180n - 144n = 36036n = 360n = 10So, number of sides = 10

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