The radius of the cone can be found by dividing the diameter by 2: 16 inches / 2 = 8 inches.
To find the lateral surface area of the cone, we multiply the radius by the slant height and by pi: 8 inches * 9 inches * 3.14 = 226.08 square inches.
The base of the cone is a circle with a radius of 8 inches, so the area of the base is pi(8 inches)^2 = 64 pi square inches.
The total surface area of the cone is the sum of the lateral surface area and the base area: 226.08 square inches + 64 pi square inches.
Find the surface area of a cone with a diameter of 16 inches and a slant height of 9 inches. Use 3.14 for pi.(1 point)
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