Definition

A shape that has seven straight sides and seven angles.

Example

The architect designed a heptagon for the new park entrance.

Conversation

Did you know that a heptagon has seven sides?

Really? I always thought it was just a regular polygon.

Yeah, it's interesting how many shapes have their own names, like the heptagon.

I agree! Geometry can be pretty cool when you think about it.

Synonyms & Antonyms

Root Explanation

Heptagon → It is formed from "hepta-" (from Greek "heptá", meaning seven) and "gonia" (from Greek "gonia", meaning angle). The word "heptagon" refers to a shape that has seven angles and seven sides.

Memory Tip

Think of 'hepta-' meaning seven and 'gonia' meaning angles — a heptagon is a shape with seven angles.

Visually Confused Words