What is the word for a shape that has equal sides?

Answer 1

Depends on the shape. If it is a triangle, it is an equillateral triangle. If it is a 4-sided figure it is either a rhombus or a square (only a square if all angles are equal as well.) In general, a regular polygon is any shape whose sides are all equal. So a regular heptagon would have 7 equal sides, a regular octogon would have 8 equal sides, so on and so forth. Hope this helps, send me a message if you need more of an explanation.

~Skularach