What Is a Rhombus? Properties, Formulas, and Real-Life Shapes
Mathnasium tutors explain what a rhombus is, its main properties, how to calculate area and perimeter, and where rhombus shapes appear in the real world.
1) How many groups of 20 are there in 1,000?

2) Count from 5 to 95 by 9s (nines).
5, ,, , , 50, , , , __, 95
3) Three cookies cost 25¢. How many cookies can you buy for $1.00?
4) Which fraction has the greatest value: 1/3, 1/7, or 1/12 ?
5) How much is a half plus a quarter?

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