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The surface area of a cylinder with height of 12 inches and 7 inch radius is 835.66 square inches
diameter X pi = circumference circumference X height = area
Area of 12 inches diameter cylinder = pi.r2 = pi*62 = 36*pi square inches (r = radius = 6 inches). Volume = area * height = 36*pi*36 = 1296*pi = 4071.5 cubic inches (to nearest 1st decimal). (pi = 3.14159 to nearest 5th decimal).
The volume of a cylinder with a height of 15 inches by 12 inches in diameter is: 1,700 cubic inches.
A cylinder with a radius of 4 inches and a height of 12 inches has a volume of 603.186 cubic inches.
The surface area of a cylinder that has a radius of 6 inches and a height of 12 inches is 678.58 square inches.
A 6 X 12 will hold more weight than a 4 X 8 of the same material because there is more surface area. Concrete strength is measured in psi, so a larger cylinder = more square inches = more pounds.
The surface area of a cylinder with height of 12 inches and 7 inch radius is 835.66 square inches
The area of the base is approximately 113.1 square inches.
A cylinder's length is 12 inches, and its radius is 6 inches. What is the surface area of the cylinder to the nearest tenth ?
diameter X pi = circumference circumference X height = area
Area of 12 inches diameter cylinder = pi.r2 = pi*62 = 36*pi square inches (r = radius = 6 inches). Volume = area * height = 36*pi*36 = 1296*pi = 4071.5 cubic inches (to nearest 1st decimal). (pi = 3.14159 to nearest 5th decimal).
The volume of a cylinder with a height of 15 inches by 12 inches in diameter is: 1,700 cubic inches.
A cylinder with a radius of 4 inches and a height of 12 inches has a volume of 603.186 cubic inches.
The term slump used in concrete means the thickness or thinness of the concrete. The slump is measured by filling a 12" cylinder up with concrete, then flipping it over and pulling the cylinder up. The distance the concrete "slumps" down from the top of the cylinder is the slump for that concrete. For example, if the concrete falls 6" from the top of the cylinder, that concrete is on a 6" slump.
Total surface area = (2*pi*62)+(pi*12*5) = 414.69 square inches to 2 dp
Assuming you are talking about a cylinder, all you need to do is calculate the area of the circle and multiply it by the height of the cylinder. The area of a circle is pi*r^2. So with a height h, the volume would be h(pi*12^2) = h * 144pi.