If you mean the diameter and radius of a circle given the circumference it is:- diameter = circumference/pi radius = circumference/(2*pi)
Times length times width
You cannot since there is not sufficient information.
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.
-- Slice it down one side and flatten it out. -- Now you have a rectangle. You only have to find the area of a rectangle. -- The area of a rectangle is (length) times (width). -- The length of the rectangle used to be the length of the cylinder. -- The width of the rectangle used to be the circumference of the cylinder's round ends, while it was still rolled up.
If you mean the diameter and radius of a circle given the circumference it is:- diameter = circumference/pi radius = circumference/(2*pi)
Times length times width
The surface area of a cylinder can be derived from the area of rectangle. If you 'unroll' a cylinder you have a shape of a rectangle, similar to a sheet of paper. The width of the rectangle will be the height of the cylinder and the length of the rectangle will be the circumference of the cylinder end.So, Area = length * widthwhere, width = height of cylinder & length = circumference of cylinder end = PI*(Diameter of cylinder)Therefore,surface area of a cylinder = (PI)*(diameter of cylinder)*(height of cylinder)Hope that helps!
You cannot since there is not sufficient information.
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.
-- Slice it down one side and flatten it out. -- Now you have a rectangle. You only have to find the area of a rectangle. -- The area of a rectangle is (length) times (width). -- The length of the rectangle used to be the length of the cylinder. -- The width of the rectangle used to be the circumference of the cylinder's round ends, while it was still rolled up.
If you know the circumference then divide that by (2 x pi) and you will get the radius. The width is unnecessary information.
It is length•2+width•2 So if you have the length u can find the width
If the area is already given, there should also be either width or length given. Do the area, divided by the length or the width. For example, the area divided by the width equal the length. Hope it helps.
Area = (length) times (width)Length = (area) divided by (width)Width = (area) divided by (length)
The circumference of a regular cylinder is the circumference of its circular face. C = pi * D (diameter of the cylinder) C = pi * 2r (or C = 2(pi)r)
Circumference of a parallelogram = (2 x length) + (2 x width).