Answer
A) 360 degrees
B) 360 degrees
Work Step by Step
A) We know that the interior angles of a pentagon are 108 degrees each, so the exterior angles are 72 degrees each. Since there are 5 angles, it follows that the sum is: (72)(5)=360 degrees.
B) The interior angles of a pentagon are each 120 degrees, so the exterior angles are each 60 degrees. Since there are 6 angles, the sum is (60)(6)=360 degrees.
