First, we need to calculate the surface area of the right circular cylinder.
The formula for the surface area of a right circular cylinder is:
Surface Area = 2πr^2 + 2πrh
Where:
r = radius of the base of the cylinder
h = height of the cylinder
Given that the diameter is 6 inches, the radius (r) would be half of that: 6/2 = 3 inches.
Substitute the radius (r = 3 inches) and height (h = 12 inches) into the formula:
Surface Area = 2*(3.14)*(3^2) + 2*(3.14)*(3)*(12)
Surface Area = 2*(3.14)*(9) + 2*(3.14)*(36)
Surface Area = 56.52 + 226.08
Surface Area = 282.6 square inches
So, Olga needs a total of 282.6 square inches of wrapping paper for each gift she is going to wrap.
Olga is making presents for her teachers and needs to wrap them. She places the gifts in a right circular cylinder with a height of 12 inches and diameter of 6 inches. How much wrapping paper does she need for each gift she is going to wrap? Use 3.14 for π .(1 point)
?inches^2?
1 answer
1 answer