Matching Pairs Review of PolygonsOnline version Review number of sides in polygons by Sarah MCMILLON 1 Hexagon 2 Decagon 3 Quadrilateral 4 Triangle 5 Pentagon 6 Heptagon 7 Nonagon 8 Octagon 7 Sides 6 Sides 5 Sides 10 Sides 9 Sides 3 Sides 4 Sides 8 Sides