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How many circles would you find in a net that can be folded to form a cylinder? *
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How do you find the curved surface area of a cylinder?
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!
How do you find the area of each cylinder to the nearest whole number?
The Area of a rectangle is LxW . The area of a circle is PI x RxR where R is the radius of the circle. The Circumference or distance around a circle is 2xPIxR. To find the surface area of a cylinder with radius R (the radius of the circles at the top and bottom) and Length L(how tall the cylinder is) you first find the area of the circles on the bottom and top - then add it to the area of the tube part. If you unwrap the tube, it becomes a rectangle with the width 2xPIxR (since it was wrapped around the circles on top and bottom), and the Length L( how tall it is) . So it will be 2 circles plus the rectangle. 2 (PIxRxR) + 2xPIxRxL. Then round it to the nearest whole number. If the number on the right side of the decimal point is 5 or more, round up to the next whole number otherwise leave it the same. Then drop the numbers on the right side of the decimal point.
What formula you can use to find the volume of a cylinder?
Find the cross-sectional area of the cylinder (pi x the radius2), the multiply that by the height of the cylinder
How do you find the perimeter of a cylinder?
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
How can you find the height of a cylinder that contains 3 tennis balls with a radius of 3cm?
If the radius of each tennis ball is 3cm, then the diameter of each ball would be 6 centimeters. And since there are 3 balls, the height of the cylinder would be 18 centimeters.
