What is the formula of the area of a rectangle, using the perimeter and the diagonal?
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I know that the area of a rectangle is height * width;
the perimeter: 2*width + 2*height
and that the diagonal is square_root(height² + width²),
but is there a formula to calculate ...show more
Other Answers (1)

Simple!
when there is a diagonal in the rectangle is means it is divided into two
right angled triangles.
area of a rectangle= sum of the two right angled triangles.
if u dunno the sides, then u can do with half perimeter nd diagonal for the right angled triangle area.
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