Question

A spyglass in the shape of a cone has a slant height of 18 centimeters and a radius of 6 centimeters. What is the surface area of the spyglass? Use 3.14 for pi.(1 point)
Responses

197.82 square centimeters
197.82 square centimeters

452.16 square centimeters
452.16 square centimeters

1,356.48 square centimeters
1,356.48 square centimeters

339.12 square centimeters
339.12 square centimeters

Answer 1

The surface area of a cone can be calculated using the formula:

Surface Area = π * radius * slant height + π * radius^2

Substituting the given values:

Surface Area = 3.14 * 6 * 18 + 3.14 * 6^2
= 339.12 + 339.12
= 678.24

Therefore, the surface area of the spyglass is 678.24 square centimeters.