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Heptagon.

Number of sides and shape name.

3 ; trigon ( triangle)

4 ; quadrilateral

5 ; pentagon

6 ; hexagon

7 ; heptagon ( as given)

8 ; octagon

9 ; nonagon

10 ; decagon

12 ; dodecagon

100 ; centagon

1000 ; milligon .

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lenpollock

Lvl 17
∙ 1w ago

What else can I help you with?