Question

Phil put a fence around a RECTANGULAR flower bed with the length of 18 feet and a width of 4.5. Next, he enclosed a SQUARE flower bed that had the same area. What number of the feet of the fence did he need to enclose the entrire SQUARE flower?

Answer 1

36 ft

Explanation:

The area of the rectangular bed is ...

(18 ft)(4.5 ft) = 81 ft^2

so the square bed with that area will have sides that are √(81 ft^2) = 9 ft.

Four such sides will require ...

4·9 ft = 36 ft

of fence.