Question

Need some help with this. hope someone can.help

Answer 1

The formula for the volume of a cylinder of radius r and height h is:

V = pi*r^2*h.

In this case,

V = pi*(40 cm)^2*(130 cm)

  = pi(1600 cm^2)(130 cm) = 208000*pi cm^3

If we use 3.14 for pi, then the volume is V = 653120 cm^3

Answer 2

$\pi = 3.14\\r=40cm\\h=1.3m=130cm\\V=\pi r^{2}h\\V=(3.14)(40^{2})(130)\\V=(3.14)(1600)(130)\\V=653120cm^{3}$