What is the name of a 7-sided polygon? *

Answer Heptagon

Step-by-step explanation:

Heptagon. In geometry, a heptagon is a seven-sided polygon or 7-gon. The heptagon is sometimes referred to as the septagon, using "sept-" (an elision of septua-, a Latin-derived numerical prefix, rather than hepta-, a Greek-derived numerical prefix; both are cognate) together with the Greek suffix "-agon" meaning angle

Heptagon.

Step-by-step explanation:

In geometry, a heptagon is a seven-sided or 7-gon. This shape is often referred as the septagon.