Use a formula to find the amount of wrapping paper you need to wrap a gift in the cylindrical box show. You need to cover the top, bottom, and all the way around the box. Use 3.14 for pie. 8in tall 7in radius
To find the amount of wrapping paper needed to cover the cylindrical box, we need to calculate the surface area of the box.
The formula for the surface area of a cylinder is:
Surface Area = 2πr^2 + 2πrh
Where:
- π is approximately 3.14
- r is the radius of the cylinder
- h is the height of the cylinder
Given:
- Radius (r) = 7 inches
- Height (h) = 8 inches
Plugging in the values into the formula:
Surface Area = 2 * 3.14 * 7^2 + 2 * 3.14 * 7 * 8
Surface Area = 2 * 3.14 * 49 + 2 * 3.14 * 7 * 8
Surface Area = 307.86 + 351.68
Surface Area = 659.54 square inches
Therefore, you would need approximately 659.54 square inches of wrapping paper to cover the cylindrical box.