Question

in regular polygon interior angle if 4 times the exterior angle, find the number of sides​

Answer 1

Step-by-step explanation:

Interior angle is 4x....let...

Then exterior angle is x

x +4x = 360

5x = 360

x = 72°

Then interior angle will be=> 4×72 = 288°

360/n = 72

360/72 = n

n = 20

So it is 20 sided polygon

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