## What is a Rhombus?

November 7, 2010 § Leave a comment

This is one of the questions that comes up in everyone’s mind at somepoint in their lifeĀ – What is a rhombus?

It is one of those shapes that is so easy to forget! I could never remember the difference between a trapezium and a rhombus . . . or the difference between a parallelogram and a rhombus. In fact, I still have problems remembering now! So here is the explanation of a rhombus:

A rhombus is a four-sided shape where all the sides are the same length. This means a square is a rhombus. There are a few rules for the rhombus though:

*The opposite sides of a rhombus must be parallel
The opposite angles in a rhombus must be the same
The diagonals in a rhombus must make a right-angle where they cross*

So, note to self: A rhombus is always a parallelogram, but a parallelogram isn’t always a rhombus!

Simply explanation of a rhombus: a leaning square! See Maths Star’s shapes page for handy shape explanation sheets