What is the surface area, in square centimeters, of a cone with a diameter of 12 feet and a slant height of 14 feet? Use 3.14 for pi and round to the nearest tenth, if necessary.

Answer 1

To find the surface area of the cone, we need to find the lateral surface area and the base area separately and then add them together.

The lateral surface area of a cone can be found using the formula A = πrs , where r is the radius of the base and s is the slant height.

Since the diameter is given as 12 feet, the radius is half of that, which is 6 feet.

The lateral surface area is then A = 3.14(6)(14) = 263.04 square feet.

To find the base area, we use the formula A = πr^2.

The radius is still 6 feet, so the base area is A = 3.14(6)^2 = 113.04 square feet.

Now we can find the total surface area by adding the lateral surface area and the base area:

263.04 + 113.04 = 376.08

Therefore, the surface area of the cone is 376.08 square feet.

Answer 2

wrong

Answer 3

yeah wrong

Answer 4

The answer is 376.8