The perimeter of the floor of a room is x and its length is y, then its area is ___________
A. 2xy
B. xy
C. 2x + y
D. y(\(\frac{x}{2}\) – y)
Answer:D
The perimeter of the floor of a room is x and its length is y, then its area is ___________
A. 2xy B. xy C. 2x + y D. y(\(\frac{x}{2}\) – y)