Definition

A three-dimensional shape that has ten flat surfaces or faces.

Example

The artist created a sculpture in the shape of a decahedron.

Conversation

Have you ever seen a decahedron in real life?

No, I haven't! What does it look like?

It's a shape with ten faces, kind of like a fancy dice.

That sounds cool! I’d love to see one up close.

Synonyms & Antonyms

Root Explanation

Decahedron → It is formed from "deca-" (from Greek "deka", meaning ten) and "hedron" (from Greek "hedra", meaning face or base). The word "decahedron" refers to a three-dimensional shape with ten faces.

Memory Tip

Think of 'deca-' meaning ten and 'hedron' meaning face — a decahedron is a shape with ten faces.

Visually Confused Words