what must the dimensions of the base be?

Question

The length of a particular rectangle is equal to about 1.71 times the width. An architect wants to design the base of a building to be a rectangle whose sides are in the same ratio as those of the given rectangle. If the perimeter of the base is to be 600 feet.

Answer 1

P = 2l + 2w

l = 1.71w

 

600 = 2(1.71w) + 2w

 

Solve for w, then plug your answer into the 2nd equation to find l.