The area of the base of a cylinder is: pi times radius squared
Chat with our AI personalities
1. Find the surface area of the whole cylinder 2. Find the area of one of the two circles on either end of the cylinder 3. Multiply the circle's area by two and subtract their area from the total surface area 4. Now you have the surface area of an unclosed cylinder!
If the area of the base and the height of the cylinder and the cone are the same, then the volume of the cone will always be one third of the volume of the cylinder.
cylinder
first you find the area of the base and then you find the area one side of the pyramid an you time it with 3 if it is a triangular pyramid or 4 if it is a square pyramid
The barrel is probably much like a cylinder. All surface area is the lateral area+the area of the base(s). In this case: SA=(d)("pi")(h)+(2)("pi")(r2) SA is surface area d is diameter of the circle base h is the height r is the radius of the base What you are doing with this equation is figuring out the circumference x the height, so you get the area of the tall part. Then you take the area of one of the bases and multiply it by 2.