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.
a 1,356.48 square centimeters
b 197.82 square centimeters
c 452.16 square centimeters
d 339.12 square centimeters
The surface area of a cone can be found using the formula:
Surface Area = πr(r + l)
where r is the radius and l is the slant height.
Plugging in the values:
Surface Area = 3.14 * 6(6 + 18)
Surface Area = 3.14 * 6(24)
Surface Area = 3.14 * 144
Surface Area = 452.16 square centimeters
Therefore, the surface area of the spyglass is 452.16 square centimeters.
The correct answer is c) 452.16 square centimeters