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.
A. 1,177.5 square inches
B. 785 square inches
C. 471 square inches
D. 2,198 square inches
1. 785 square inches
2. 1,354.125 square centimeters
3. 452.16 square centimeters
4. 226.08 square feet
5. 942 square centimeters
ALL THE ANSWERS ARE HERE!!! :3
The correct answer is option A. 1,177.5 square inches.
To find the surface area of a cone, we use the formula:
Surface Area = πr(r + l), where r is the radius and l is the slant height.
Given that the radius is 10 inches and the slant height is 15 inches, we can substitute the values into the formula:
Surface Area = 3.14 * 10(10 + 15)
Surface Area = 3.14 * 10 * 25
Surface Area = 785 square inches