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Maths Exercices

Area of kites of rhombuses

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.

RomboA 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.


Find the area in cm2



A=60 cm2


What is the area when D=17 and d=8?



Solution: