Pretend you have a soup can in front of you. That is a cylinder. Now, pretend you are cutting off both ends, which are circles. Now, with the leftover body part, unfold it, so it resembles a rectangle. Now you have circles and triangles.
Now, use the rectangular area formula (Area=Base X Height) and find the area of the rectangle.
Now, use the circular area formula (Pi [3.14] X Radius [Half the diameter]2) and multiply that by 2 (because of the 2 circles, top and bottom). Add the rectangular and circular (the doubled total) together and you have the area of the cylinder. I hope this helped!
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The formula for volume of a cylinder is pi•r2•h
Volume of a cylinder = pi*radius2*height
The formula to calculate volume of a cylinder is: V = r2 x Pi x height (r = radius)
For a right cylinder, the formula for volume is quite simple. It is pi times the radius of the cylinder squared times the height of the cylinder.
The formula for area of a circle is radius squared times pi. The formula for volume of a cylinder is radius squared times pi times height.