parallelepiped

there are six points:

1) when R^1 it is lenght
.................................................
2)when R^2 it is area ..........

.........................................._________
3)when R^3 it is volume....../_______ /|
............................. ............|.......... ...|. |
..........................................| _ _ _ _ .|. |
..........................................|/____ __|/

4)R^n ~ V = Vbase*h

5) algebra
6)Analisis
a) Lebeg b) Hausorff