Question

A polygon has five interior angles. It has two angles measuring 160° each, two angles measuring 75° each, and one angle measuring 70°. Which of these is the most specific name for the polygon?
a.concave hexagon
b.concave pentagon
c.convex hexagon
d.convex pentagon

Answer 1

Convex - A polygon that has all interior angles less than 180°
Concave - A polygon that has one or more interior angles greater than 180°

Answer 2

pentagon = 5
hexagon = 6

Answer 3

Use the convex/concave explanation from @ivettef365 above and:
The number of interior angles is the same number as the sides.
Pentagon - five-sided polygon.
Hexagon - six-sided polygon