Question

an exterior angel and an interior angle of a regular are in the ratio 2 : 7 . Find the number of sides in the polygon.

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Answer 1

Answer:

7+2 = 9. 180/9 = 20. Hence exterior angle is 20*2 = 40 degrees and the interior angle 20*7 = 140.

Step-by-step explanation:

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Answer 2

Any angle that is on the inside of a shape is called an interior angle. Any angle that is on the outside of a shape is called an exterior angle. An exterior angle is made by extending one of the lines of the shape beyond the intersection point. ... Notice that the two angles make a straight line.

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