Answer:
To find the number of sides of a polygon when given one interior angle, you can use the formula:
n = 360° / (180° - x)
where n is the number of sides and x is the measure of the given interior angle in degrees.
For example, if you are given an interior angle of 120°, you can find the number of sides using the formula:
n = 360° / (180° - 120°) = 6
Therefore, the polygon has 6 sides, which is a hexagon