A pentagon is a 5 sided polygon
No because an equilateral triangle has 3 equal sides
A rhombus.
An equilateral figure means that the figure has all sides that are the same length.
An isosceles triangle has 2 equal sides, a equadrilateral triangle has all equal sides, and a scalene has no equal sides
The correct spelling is "equilateral" (having sides of equal length). In geometry, the triangle, square and all other regular polygons are equilateral. The term "quadrilateral" is any shape made from 4 straight line segments.