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When daddy asked to marry mom,

She asked him for a ring,

Daddy rushed off to the mall,

To buy some blingy thing!

Mommy opened up the box,

And much to her surprise,

She found a ring that was a square,

And tears came to her eyes…

(nobody wants a square ring!!!)

But square rings can be special,

My dad explained with pride,

A rhombus is a special shape,

He flipped square to the side…

A rhombus is a diamond too,

At least, it is, I think,

I know it’s parallelogram,

Like our kitchen sink!

Mom was filled with so much joy,

She laughed a silly laugh,

I’ll marry you this very day,

You’re so great at math!

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.