Answer:
3 sides - Triangle.
4 sides - Quadrilateral.
5 sides - Pentagon.
6 sides - Hexagon.
7 sides - Heptagon.
8 sides - Octagon.
9 sides - Nonagon.
10 sides - Decagon.
Step-by-step explanation:
8
5 + 3 = 8
<em>Hope that helps! </em>
<em>-Sabrina</em>
Answer: 21
9 + 10 = 21
c
