Answer:

D. heptagon

explanation:

More than Four Sides

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

Answer:

D. heptagon

Step-by-step explanation:

In geometry, a heptagon or septagon is a seven-sided polygon or 7-gon.

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