Is the figure shown concave or convex?
Hint
Cavity or no cavity? Cave or no cave? Deal or no deal?
Answer
Convex
Does it look more like Quadman or more like his food?
Concave
Draw those diagonals and see what you find.
Identify the convex quadrilateral from the choices shown.
The shape you choose has to be convex (meaning without a cavity or cave).
Shape (C)
Identify the concave quadrilateral from the choices shown.
Make sure you're choosing not just any old concave shape, but a concave quadrilateral.
Shape (B)
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