The sides of a rectangle are in a ratio of 7 : 4. If the perimeter of the rectangle is 176 ft, what is the area of the rectangle?
let the sides be 7x and 4x. Then you have
2(7x+4x) = 176
Solve for x, then the area is 7x * 4x = 28x^2
2(7x+4x) = 176
Solve for x, then the area is 7x * 4x = 28x^2