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
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.