Question

A convex octagon has exterior angles that measure 35, 41, 25, 55, 62, 17, and 38 degrees. What is the measure of the eighth exterior angle?

Answer 1

Exterior angles add up to 360. Just subtract.

Answer 2

Remember two things: (1) internal angles sum to (n-2)*180 degrees and external angles sum to 360...always.

Answer 3

Internal angle sum depends on the number of sides, external angle sum doesn't (it's always 360).

Answer 4

thank you