Rhombus
When daddy asked to marry mom,
Mom asked him for a ring,
So daddy rushed,
To the store,
And bought her some weird thing!
Mommy opened little box,
And much to her surprise,
She found a ring that was a square,
And tears came to her eyes…
But square rings can be special,
My dad told mom with pride,
A rhombus is real special,
And he turned square on its side…
A rhombus is a diamond,
At least it is, I think,
I know it’s parallelogram,
Like our kitchen sink!
My mom was filled with joy,
She laughed a silly laugh,
I’ll marry you today,
You're so good at math!
A rhombus is a quadrilateral with four equal length sides.
A square is a rhombus that has 4 equal angles and 4 equal length sides
Every rhombus is a parallelogram.
Unlike the 'rhombus ring' in this poem, not all diamond shaped objects are rhombuses. The term diamond is sometimes used to describe shapes even if they don’t have equal length sides. 
Math Challenges 
If a rhombus has an angle of 60 degrees, what are the measures of all 4 angles of the rhombus? 
Can a rectangle (with 2 sides of different lengths) be a rhombus? 

