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Common Core Standard 7.G.6   7th Grade Math  Is a square a rhombus? Yes, because a square has...

• 4 congruent sides
• Opposite sides that are congruent and parallel
• Congruent opposite angles
• Diagonals that create four right angles

Other names for a Rhombus
• rhomb
• diamond
• rhombi or rhombuses (plural)
• rhombbi
•  rhombbuses

Use this handy calculator to check your work
Calculate the following:
• Area of a Rhombus using Base x Height
• Area using Diagonal Method
• Rhombus Area using trig
• Perimeter of a Rhombus
Related websites on a Rhombus

Difference between a Rhombus and a Parallelogram  Helpful article that provides much detail between these two quadrilaterals

Rhombus/Bitesized BBC  This site is produced by the BBC and reviews the basic properties of a rhombus

Theorems Dealing with Rectangles, Rhombuses, Squares/Regents   One of my favorite Math sites. Produced by Math teachers,no ads,great Math  # Rhombus | Geometry Shapes

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Area of a Rhombus
In this video you will learn....

The formula for area of a rhombus equals 1/2d1*d2

## Area of a Rhombus        ## What does Rhombus mean?

 A rhombus has four congruent sides. (equal) A rhombus has opposite sides that are congruent and parallel. A rhombus has opposite angles that are congruent. The diagonals of a rhombus are perpendicular.   The diagonals cross and make four right angles. The diagonals of a rhombus form four congruent interior triangles The formula for finding perimeter equals P= 4s s= sides The formula for area equals ½ d1 * d2 d = length of the diagonals

### Formula for finding the area of a rhombus

A rhombus is most commonly recognized as a diamond, but they are not limited to this shape. The following chart describes and illustrates the properties of a rhombus.