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 n.

Answer 1

To calculate the amount of wrapping paper Olga needs for each gift, she needs to find the surface area of the cylinder.

The formula for the surface area of a cylinder is:
2πr(r+h) where r is the radius and h is the height.

Given that the diameter of the cylinder is 6 inches, the radius (r) is half of that, which is 3 inches.

Plugging in the values:
Surface Area = 2 * 3.14 * 3(3 + 12)
Surface Area = 2 * 3.14 * 3(15)
Surface Area = 2 * 3.14 * 45
Surface Area = 282.6 square inches

So, Olga needs 282.6 square inches of wrapping paper for each gift she is going to wrap.