2.25
24 in x 18 in = 2 ft * 1.5 ft = 2*1.5 sq ft = 3 sq ft
3 sq. ft.
Area of 30 inch circle = pi*302 sq inches Area of 18 inch circle = pi*182 sq inches Difference = pi*(302 - 182) = 576*pi sq inches 1 sq foot = 1 ft*1 ft = 12 inches*12 inches = 144 sq inches so 576*pi sq inches = 576/144 *pi sq ft = 4*pi sq ft = 12.57 sq ft.
1 sq ft = 1 ft * 1 ft = 12 inches * 12 inches = 144 sq inches.
6 inches x 3 inches = 18 square inches 18 sq/in = .125 sq ft 30 sq ft / .125 sq ft = 240 pavers NOTE: You should allow extra pavers as a "fudge factor".
As a 18 sq ft room has area equal to 18*144=2592 sq inches, you need 2592/(18*18)=8 18 inch tiles.
450 sq ft = 64,800 sq inches.
2,000 sq ft = 288,000 sq inches.
2 sq ft = 2*144 = 288 sq inches.2 sq ft = 2*144 = 288 sq inches.2 sq ft = 2*144 = 288 sq inches.2 sq ft = 2*144 = 288 sq inches.
144 sq inches in a sq. ft.
6 ft * 18 in = 6 ft * 1.5 ft = 9 sq ft
18" x 18" = 1.5ft x 1.5 ft = 2.25 sq ft 12 ft x 12 ft = 144 sq ft So number of paver required = 144/2.25 = 64