Areas

Kite and Rhombus

A kite, or deltoid, is a quadrilateral with two disjoint pairs of congruent adjacent sides, in contrast to a parallelogram, where the sides of equal length are opposite.

Rombo A Rhombus is a four-sided polygon having all four sides of equal length and whose opposite sides are parallel (every rhombus is a kite).

Each rhombus has two diagonals. The biggest one is called long diagonal and the smaller one is called short diagonal. (Note that the diagonals of a rhombus are perpendicular).

Area of kites and rhombuses

The area of any kite or rhombus is equal to one-half the product of the lengths D and d of its diagonals.

$Area=\frac{D\;\cdot\;d}{2}\;$

Find the area in cm²

$Area=\frac{D\;\cdot\;d}{2}\;$

$Area=\frac{12\;\cdot\;10}{2}\;$

A=60 cm²

Find the area of the rhombus where:

The addition of the two diagonals is 11and the short diagonal is 5units long. units long.

Area=