The curved surface area of a cylinder can be calculated using the formula 2πrh, where r is the radius and h is the height.
In this case, the radius is 2 inches and the height is 5 inches, so the curved surface area of the pencil holder is:
2π(2)(5) = 20π square inches.
Therefore, Josie will need a piece of paper with an area of 20π square inches to cover the curved surface of the pencil holder.
Josie wants to decorate the curved surface of a pencil holder that has a radius of 2
inches and a height of 5
inches.
She plans to decorate a piece of paper and then wrap it around the pencil holder.
What is the area of the paper she will need to cover the curved surface?
A cylindrical pencil holder with radius 2 inches and height 5 inches.
1 answer
1 answer