# What is the formula for a frustum of a pyramid?

## What is the formula for a frustum of a pyramid?

are trapeziums; the distance between the parallel sides of this trapeziums is the slant height of the frustum of the pyramid. = ½ × (perimeter of the lower face + perimeter of the upper face) × l. = Area of the slant faces + S₁ + S₂; (C) Volume of the frustum = 1/3 × (S₁ + S₂ + √ S₁ S₂) × h.

## How do you fix a frustum?

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.

What is the frustum of a pyramid?

In geometry, a frustum (plural: frusta or frustums) is the portion of a solid (normally a cone or pyramid) that lies between one or two parallel planes cutting it. A right frustum is a parallel truncation of a right pyramid or right cone. If all the edges are forced to be identical, a frustum becomes a uniform prism.

### How do you find the area of a frustum square pyramid?

Note: Each side face of any frustum of a pyramid is an isosceles trapezoid and thus, the area of each side face can be found by using the area of trapezoid formula (1/2) × (sum of the parallel sides) × (height).

### What is difference between truncated and frustum?

As nouns the difference between frustum and truncation is that frustum is a cone or pyramid whose tip has been truncated by a plane parallel to its base while truncation is the act of truncating or shortening (in all senses).

What is a cone with the top cut off called?

A conical frustum is a frustum created by slicing the top off a cone (with the cut made parallel to the base).

## Does the pyramid have 8 sides?

Despite what you may think about this ancient structure, the Great Pyramid is an eight-sided figure, not a four-sided figure. Each of the pyramid’s four side are evenly split from base to tip by very subtle concave indentations.

## What is a cone with the top cut off?

A conical frustum is a frustum created by slicing the top off a cone (with the cut made parallel to the base). For a right circular cone, let be the slant height and and the base and top radii.