equations and formulae Flashcards
1
Q
surface area of a sphere
A
4 x pi x r^2
2
Q
volume of a sphere
A
4/3 x pi x r^3
3
Q
density
A
mass/volume
4
Q
speed
A
distance/time
5
Q
pressure
A
force/mass
6
Q
area of a sector
A
int angle/360 x pi x r^2
7
Q
arc lenght
A
int ange/360 x 2pir
8
Q
area of a cylinder
A
2pirh+2pi r^2
9
Q
volume of a cylinder
A
pi r^2 h
10
Q
volume of a cone
A
pi r^2 h/3
11
Q
volume of a sb pyramid
A
a^2 h/3
a=base edge
