Question

What is the area of frustum?

Answer 1

Pi * l (R + r)

Explanation:

Answer: The Curved Surface Area (CSA) of the frustum of a cone is: = pi * l (R + r) where the (r) stands for = radius of the smaller circle and (R) stands for = radius of the bigger circle and the (l) = slant height of the frustum

Answer 2

The area of a frustum (truncated cone) can be calculated using the formula:

A = π(R1 + R2) × L

where R1 and R2 are the radii of the top and bottom bases of the frustum, L is the slant height of the frustum (the distance between the centers of the top and bottom bases), and π is the mathematical constant pi (approximately 3.14159).

Alternatively, if you know the heights of the top and bottom bases (h1 and h2, respectively) and the slant height, the formula for the area of a frustum is:

A = π(R1^2 + R2^2 + R1R2) + L(h1 + h2)

Note that the units of measurement used for the radii, heights, and slant height must be consistent in order to get an area with correct units (e.g. square inches, square centimeters, square meters, etc.).

It's worth noting that there are different formulas for calculating the volume of a frustum, depending on the shape of the bases and the dimensions that are known.