Question

Adrian is painting the outside of a cylinder tire he plans to recycle as a planter the tire has a radius of 4 feet and a height of 3 feet in order to understand how much paint is needed Adrian wants to know the surface area of the outside of the tire how many square feet is the outside of the tire use 3.14 for pi and round your answer to the nearest tenth

Answer 1

To find the surface area of the outside of the tire, we need to calculate the lateral surface area of the cylinder and the areas of the two circular bases.

The lateral surface area of a cylinder can be calculated using the formula 2πrh, where r is the radius (4 feet) and h is the height (3 feet). Therefore, the lateral surface area is:
2 * 3.14 * 4 * 3 = 75.36 square feet.

The area of each circular base can be calculated using the formula πr^2. Therefore, the area of each base is:
3.14 * 4^2 = 50.24 square feet.

To find the total surface area, we add the lateral surface area and the areas of the two bases:
75.36 + 2 * 50.24 = 175.84 square feet.

Therefore, the outside of the tire has an area of 175.84 square feet.