# Volume of a frustum

## Calculates the volume of a frustum given the base and top areas, and height.

top area S1
base area S2
height h

volume V

 $\normal Frustum\\(1)\ volume:\hspace{20} V={\large\frac{h}{3}}(S_1+S_2+\sqrt{S_1S_2})\\$

To improve this library, please fill in questionnaire.

Gender
Male Female
Age
Under 20 years old 20 years old level 30 years old level
40 years old level 50 years old level 60 years old level or over
Occupation
Elementary school/ Junior high-school student
High-school/ University/ Grad student A housewife An office worker / A public employee
Self-employed people A teacher / A researcher Others
Useful?
Very A little Not at All
Purpose of use?