Question

Which of the following formulas would find the lateral area of a right cone where r is the radius and s is slant height?

A. LA=1/2 π rs
B. LA=2 π rs
C. LA= π rs
D. LA= rs

Answer 1

The formula for calculating the lateral area of a right cone, given the radius (r) and the slant height (s), is LA = ½ πrs.

Step-by-step explanation:

The formula that would find the lateral area of a right cone where r is the radius and s is the slant height is LA = ½ πrs. This formula represents the lateral surface area of a cone and is derived by considering the cone as a sector of a larger circle when it is opened flat.

The formula for calculating the lateral area of a right cone, given the radius (r) and the slant height (s), is LA = ½ πrs. Lateral surface area involves just the sides of the cone and does not include the base area. In this case, the correct option is A. LA=½ πrs.