求數學公式

．volume of cone
1/3πr2h
．surface area of cone
πrl
．volume of cylinder
πr2h
．surface area of cylinder
2πrh
．volume of sphere
4/3πr3
．surface area of sphere
4πr2
．volume of pyramid
1/3*base area*height
．surface area of pyramid
so nuch formula as not all pyramid are right pyramid
but it is the sum of
base area+sum of outter sides

請參考
http://edu.0451.net/tools/math.htm

volume of cone(1/3)π(r^2)h

surface area of cone=π(r^2)+πrl

volume of cylinder=π(r^2)h

surface area of cylinder=2π(r^2)+2πrh

volume of sphere=(3/4)π(r^3)

surface area of sphere=4π(r^2)

volume of pyramid=(1/3)(base area)h

surface area of pyramid =base area+lateral face area

FORMULAS FOR REFERENCE

SPHERE
Surface area =4丌r^2
Volume =4丌r^2/3

CYLINDER
Area of curved surface =2丌rh
Volume=丌r^2h

CONE
Area of curved surface= 丌rl
Volume=1/3 * 丌rh

PRISM
Volume = base area * height

PYRAMID
Volume=1/3 * base area * height