Answer:

5 sides is pentagon

6 sides is heptagon

7 sides is hexagon

8 sides is octagon

9 sides is nonagon

10 sides is decagon

11 sides is nonecagon

12 sides is dodecagon

Step-by-step explanation:

yan po ang aking sagot ☺

Answer:

A five-sided shape is called a pentagon. A six-sided shape is a hexagon, a seven-sided shape a heptagon, while an octagon has eight sides… The names of polygons are derived from the prefixes of ancient Greek numbers.