Question

what kind of polygon is this? concave convex submit

Explanation:

A convex polygon has all interior angles less than 180° and all vertices pointing outward. The given polygon (a trapezoid) has all interior angles less than 180° and vertices pointing out, so it's convex. A concave polygon has at least one interior angle greater than 180° (a "dent"), which this doesn't have.

Answer:

B. convex