Question

If the ratio of exterior and interior angle of a regular polygon is 2:7, what is the number of sides of the polygon? 19 o 7 (0) 9 O 8 1​

Answer 1

Answer:

solving, you will get no. of sides = 9.

Step-by-step explanation:

Interior angle of a polygon of n-sides = (n-2)π/n

Exterior angle of a polygon of n-sides = 2π/n

Taking there ratio, and equating it to 7/2

Thus n-2/2=7/2

⇒n=9

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