Question

If a regular polygon has exterior angles that measure 40 degrees each, how many sides does the polygon have?

Answer 1

The answer to this problem is B.9 [apex] boi

Answer 2

The measure of the exterior angle of a regular polygon is the quotient when a whole revolution, 360 degrees, is divided by the number of sides (n). This is shown in the equation, 
  
                                                A = 360 / n 
From the given above, 
                                          40 = 360 / n       ; n = 9

Therefore, the answer is letter B. 9.