Krubell wants to make a new pencil case for the upcoming school year. He will use a circular cylinder template with a radius of and a height of .How much fabric will Krubell need to make his pencil case? Use .3.14

Answer 1

To find out how much fabric Krubell will need for his pencil case, we first need to calculate the surface area of the cylinder.

The formula for the surface area of a cylinder is:

Surface area = 2 * π * r * (r + h)

Given that the radius (r) is 4 cm and the height (h) is 10 cm, we can plug these values into the formula:

Surface area = 2 * 3.14 * 4 * (4 + 10)
Surface area = 2 * 3.14 * 4 * 14
Surface area = 25.12 * 14
Surface area = 351.68 cm^2

So, Krubell will need approximately 351.68 cm^2 of fabric to make his pencil case.