A '''rhombus''' is an equilateral quadrangle, which is a [[polygon]] having four sides of equal length. In non-academic contexts, its forms are called diamonds and [[square]]s.
A '''rhombus''' is an equilateral quadrangle, which is a [[polygon]] having four sides of equal length. In non-academic contexts, its forms are called diamonds and [[square]]s.
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Its area is the product of its diagonals divided by two. Note that its diagonals are perpendicular to each other, and bisect each other.
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Its area is the product of its diagonals divided by two. Note that its diagonals are [[perpendicular]] to each other, and bisect each other.
In symbolic form, the area of a rhombus having diagonals of lengths D<sub>1</sub> and D<sub>2</sub> is:
In symbolic form, the area of a rhombus having diagonals of lengths D<sub>1</sub> and D<sub>2</sub> is: