An exterior angle of a regular polygon measures 45 degrees. what is the measure of an interior angle? 135 degrees 145 degrees 45 degrees

The exterior angle of a polygon and its corresponding interior angle always add up to 180°.

Let the interior angle of the polygon be

So,

So, the interior angle of the polygon is

1^3 + 2^3 + 3^3 +4^3 = (1+2+3+4)^2

step-by-step explanation:

i am only able to answer the first part. i am not sure about the second part. sorry

c.)

step-by-step explanation: