1.

One angle of a regular polygon is 168°. How many sides does it have?​

Answer»

ides

We can use the fact that the sum of the EXTERIOR angles is always 360. If the INTERIOR angle is 168, then the exterior angle is 180 - 168, or 12. The 360 degrees is evenly DISTRIBUTED over all of the angles, so 360/12 = 30 sides.



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