Question

the measure of one interior angle of a regular polygon is 60 degree mote the twice the measure of an exterior angle at the same vertex how many sides does this polygon have​

Answer 1

3 sides

Explanation:

If the interior angle measures 60 degrees, this means the exterior angle measures 120 degrees.

The exterior angle of a regular polygon is given by 360/n, where n is the number of sides, so setting this equal to 120, we get that n=3 sides