The diagonal length of the bottom of the rectangular wardrobe is 15/2 feet, and the short side length is 17/4 feet. What is the area of this closet?

Solution: Let the diagonal at the bottom of the wardrobe be c= 15/2.

The length of the short side is a= 17/4,

The long side is b=√(c? -a？ )=√6 1 1/4,

That area s = ab = (17 √ 611)16.