Bonnie is going to buy a rug to cover her entire kitchen floor. the width of her kitchen is 5 meters. the length is 7.5 meters. what is the area of the rug that bonnie needs to buy?

The perimeter of △cde is 55 cm. a rhombus dmfn is inscribed in this triangle so that vertices m, f, and n lie on the sides cd , ce , and de respectively. find cd and de if cf=8 cm and ef=12 cm. the answer is not cd=20 and de=15. i have tried that one, it does not work.