1/9
Triangle area
A = 1/2 * base * height.
Triangle perimeter
P = A+B+C
Square area
s2
Square perimeter
4*S
Rectangle perimeter
2*(lenght +width)
Rectangle area
Length * width
Cube
Length* width * height
Circle diameter
2xradius
Circle area
Pi * radio al cuadrado
Circle circumference
2*pi*radio