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)
Responses
785 square inches
785 square inches
471 square inches
471 square inches
1,177.5 square inches
1,177.5 square inches
2,198 square inches
To find the surface area of a cone, you can use the formula:
Surface area = πr(r + l)
Where r is the radius and l is the slant height.
In this case, the radius is 10 inches and the slant height is 15 inches.
Surface area = 3.14 * 10(10 + 15)
Surface area = 3.14 * 10(25)
Surface area = 3.14 * 250
Surface area = 785 square inches
Therefore, the surface area of the cone is 785 square inches.