A square is equilateral, because all of its sides are the same length. A rhombus is also equilateral — its sides are also the same length. A triangle can be equilateral too, but not a scalene triangle, which has three sides of different lengths. The word equal should help you remember what equilateral means.

Is equilateral a rhombus?

In plane Euclidean geometry, a rhombus (plural rhombi or rhombuses) is a quadrilateral whose four sides all have the same length. Another name is equilateral quadrilateral, since equilateral means that all of its sides are equal in length. ... A rhombus with right angles is a square.

Are equilateral triangles and a square similar?

An equilateral triangle means all 3 sides are the same length. A square also have the same length for all 4 sides.