Question

surface area of cones quick check
what is the surface area, in square inches, of a cone with a radius of 10 inches and a slant height of 15 inches? use 3.14 for pi. (1 point)
2,198 square inches
471 square inches
1,177.5 square inches
785 square inches

Explanation:

Step1: Recall the formula for the surface area of a cone

The formula for the surface area of a cone is \(S=\pi r(r + l)\), where \(r\) is the radius and \(l\) is the slant height.

Step2: Substitute the given values into the formula

Given \(r = 10\) inches, \(l=15\) inches, and \(\pi = 3.14\).

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Answer:

785 square inches