106.67 Cubic Yards
To calculate the amount of concrete needed for a 24ft by 20ft slab that is 4 inches thick, first convert the thickness to feet (4 inches = 1/3 feet). The volume in cubic feet is then 24ft × 20ft × (1/3)ft = 160 cubic feet. To convert cubic feet to cubic yards (since concrete is often sold by the cubic yard), divide by 27: 160 cubic feet ÷ 27 = approximately 5.93 cubic yards. Therefore, you would need about 6 cubic yards of concrete.
240 cu. ft. pluse your wastage.... always add a bit more better to have to much then not enough thats 8.888889 cu.yd. and 6.796 cu. meters
You will need 17.8 cubic yards of concrete.
A cylinder with a diameter of 24ft and a height of 11ft has a volume of 4,976.28 cubic feet.
Volume in cubic feet = pi*62*24
For a 4-inch depth: 4.75 cubic yards. For a 6-inch depth: 7.1 cubic yards.
Volume = pi*62*24 = 2261.947 cubic feet rounded to 3 d.p.
Volume = pi*62*24 = 2714.336 cubic feet to 3 d.p.
7.1
Volume = pi*r2*h Volume =pi(6 ft)2(24 feet) = 2714 cubic feet ============
A cylinder with a radius of 6 feet and a height of 24 feet has a volume of 2,714.34 cubic feet.
Volume of a cylinder = πr2h = 3.14 x 36ft2 x 24ft = 2712.96ft3