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Answer with explanation:
Kevin could have drawn a regular Convex Nonagon(9 sides and 9 angles) and a simple Convex Nonagon (9 sides and 9 angles).
A polygon is said to be convex, if all the angles of polygon lie in the Interior.
A polygon is said to be regular, if it's all sides and all interior as well as exterior angles are equal.

Kevin could have drawn a regular Convex Nonagon and a simple Convex Nonagon.
What is a polygon?
A polygon is a closed figure made up of three or more line segments connected end to end.
Kevin drew 2 two dimensional shapes that had 9 angles in all.
Kevin could have drawn a regular Convex Nonagon that has 9 sides and 9 angles and a simple Convex Nonagon that has 9 sides and 9 angles.
A polygon is said to be convex if all the angles of the polygon lie in the Interior part.
A polygon is said to be regular if it's all its sides, interior and exterior angles, are equal.
Learn more about polygon;
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