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Why is this concept useful?: Professions such as landscapers, car, fashion, interior, and game designers use rhombi.
Where does this concept fit into the curriculum?: 3rd grade Identifying by attributes; 6th grade Finding the area given the length of the bisectors; 8th grade finding the perimeter, the area, the angles, and the length of the bisectors.

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What is a Rhombus? A rhombus is a quadrilateral.

The sides of a rhombus are congruent.
Opposite sides are parallel
The opposite angles of a rhombus are equal to each other.
The adjacent angles are supplementary.
In a rhombus, diagonals bisect each other at right angles.
The diagonals of a rhombus bisect these angles.

How can we use the concept?

The sides of a rhombus are congruent.
Opposite sides are parallel
The opposite angles of a rhombus are equal to each other.
The adjacent angles are supplementary.
In a rhombus, diagonals bisect each other at right angles.
The diagonals of a rhombus bisect these angles.

Finding the area of a Rhombus

A = \frac{d1 x d2}{2}

d1 = diagonal

d2 = diagonal 2

Sample Math Problems

Choose the statements that are true about rhombus?

All sides of a rhombus are equal.
In a rhombus, diagonals bisect each other at right angles.
All angles are acute.
Opposite sides are parallel.

Correct Options: A, B, D

KaTeX can only parse string typed expression

c^2 = 5^2+ 12^2

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Practice Math Problems

1.

2.

3.

4. From the following statements select the correct statements

A rhombus does not have any 90 angles.
A rhombus has 1 pair of congruent sides.
A rhombus has opposite congruent angles.
A rhombus has bisectors that form right angles.

c^2 = 25 + 144

c^2 = 169

\sqrt ( c^2 )=

\sqrt ( 169)

c = 13

AR = 13 Since all sides are congruent, CA = 13, RS = 13, CS = 13

Perimeter = 4s

= 4 x 13

= 52

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Geometry Worksheets

Rhombus

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