What are the name of two quadrilaterals in which all the sides have equal length?

First of all, quadrilaterals are just shapes with 4 sides! The Word "quadrilateral" comes from the Spanish Word "cuatro" which means four. One shape that has all sides equal length and is a quadrilateral is a square. Another one is a rhombus. Because it has 4 equal sides that are the same length. That easy! I hope this helps!