There are 6 rectangular flower gardens each measuring 18 feet by 17 feet in a rectangular city park measuring 80 feet by 160 feet. How many square feet of the park are not used for flower gardens?

The area which is not in used for the flower gardens is 10964 sq ft.

Step-by-step explanation:

Given,

Length (l) of the rectangular park = 160 ft

Width (b) of the rectangular park = 80 ft

Length (l) of each rectangular flower garden = 18 ft

Width (b) of each rectangular flower garden = 17 ft

To find the area which is not in used.

Formula

The area of rectangle = l*b

Now,

The area of the rectangular park = 160*80 sq ft = 12800 sq ft

The area of each rectangular flower garden = 18*17 sq ft = 306 sq ft

The area of 6 rectangular flower garden = 306*6 sq ft = 1836 sq ft

So,

The area which is not in used = 12800-1836 sq ft = 10964 sq ft.