44cm
Area = length x width Area = 100cm x 100cm Area = 10000cm2
Let h be the height of the cylinder and r the radius of the circular top/bottom. If you cut the cylinder down one side and roll it out, you have a rectangle. The length of the side is h and the width would be 2pi*r (the perimeter of a circle). Therefore, the perimeter of a cylinder is 2pi*r + 2h
Base x Height.... The base of a cylinder is a circle. So you first find the area of the circle. pi times the radius squared. (for example, with a cylinder with a radius of 2in and a height of 3in, the area of the base would be about 2 x 2 x 3.14 = 12.56 Then you multiply the area of the base with the height. So going with our example, 12.56 x 3 = 37.68 inches. Think about it this way: The volume of a rectangular prism is length x width x height. The base of a rectangular prism is a rectangle , and to find the area of that is length x width. So it's the area of the base (which is length x width) x the height.
diameter of a circle = 2*radius or circumference/pi
One square meter has a length of 100 centimeters and a width of 100 centimeters, so its area measured in centimeters would be: 100cm * 100cm, which equals 10,000cm^2
Knowing the width and length of the cylinder is required. Then, the formula is Pi x radius square x length. For example, the volume of a 10-foot long cylinder with a width of 6 feet is as follows:Pi (3.1415) x 9 (radius squared) x 10 (length) = 282.735 cubic feet.
Area = length x width Area = 100cm x 100cm Area = 10000cm2
A cylinder with radius 5 and width 10 has a lateral area of about 314.16 units2
Think of slitting the cylinder down one side, then unroll it and lay it down flat. What you have then is a rectangle. The area of the rectangle is: (length x width). The length of the rectangle used to be the length of the cylinder, and the width of the rectangle used to be the circumference of the circle at the end of the cylinder, which is (pi) x (diameter of the cylinder), or (pi) x (double the radius of the cylinder). We're sure you can do it now.
If you have a physical cylinder to measure, measure the "width" of the circle that is the cross section of the cylinder. That is the diameter, Half the diameter is the radius.
there is no length or width of a circle. There is radius and circumference and the line that goes all the way through the center to the other side of the circle, which is twice the radius. But there is no length or width of a circle.
volume of a cube is length, by width by height. To calculate the volume of a cylinder you need to know the radius and the height and multiply.
It is length•2+width•2 So if you have the length u can find the width
If you know the circumference then divide that by (2 x pi) and you will get the radius. The width is unnecessary information.
radius = diameter/2 radius = circumference/2*pi
Radius
The volume of a cylinder that has a length of 78.5 inches and width of 78.5 inches is: 380,000 cubic inches.