84
In parallelogram ABCD, AC=BD. Is ABCD a rectangle?
Area of a rhombus: base times perpendicular height Or area of a rhombus: 0.5 times product of its diagonals
never
\8
38.5
58.5
31.5
31.5 square units
31.5 Square Units
A = (1/2)(ac)(bd) = (1/2)(8)(9) = 36
The 2 lengths that you described are diagonals. The area of a rhombus when you know the diagonals is half the product of the diagonals: Area = (1/2) * ( 12 * 7) = 42.
84
A rhombus has two lines of symmetry. They are also called its diagonals. Suppose there is a rhombus ABCD AC and BD are its lines of symmetry.
15 units
5 units
area_rhombus = 1/2 x product_of_diagonals= 1/2 x AC x BD= 1/2 x 8 x 9= 36 square units