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
The surface area of a cone can be calculated using the formula:
surface area = π * r * (r + L)
where r is the radius of the cone and L is the slant height.
Given that the radius (r) is 10 inches and the slant height (L) is 15 inches, we can substitute these values into the formula:
surface area = 3.14 * 10 * (10 + 15)
= 3.14 * 10 * 25
= 785 square inches
Therefore, the surface area of the cone is 785 square inches.