Question

The quadrilateral ABCD has an area of 58 in2 and diagonal AC = 14.5 in. Find the length of diagonal BD if AC ⊥ BD.

Answer 1

So the quadrilateral is a rhombus. RSM Is hard and etc...
Anyways if the area =$58^{2}$ and we know that one diagonal is 14.5 inches and we know that the area of a rhombus is 
$\frac{D^{1} * D^{2}}{2} =$
then we can do inverse operation and do
$\frac{54}{14.5} = 4$ 
4 * 2 because of the inverse operation has to be done to get the right answer and then you get the length of diagonal 2 is 8 in