Question

Find the volume of a cylinder with the hight 2cm and the diameter 12cm give your answer rounded to 3 SF

Answer 1

Volume of a cylinder=

$\pi {r}^{2} h$

Height=2cm

Radius=Diameter/2=12/2=6cm

Volume= 3.14*6*6*2

=3.14*72

=226.08

${cm}^{3}$

Rounding off to 3 significant figures

=226

${cm}^{3}$