Question

someone please help me with this.

The volume of a cylinder is 231 m^3.
Find the height, in m, of the cylinder if the radius is 0.7 m.​

Answer 1

• Radius=r=0.7m
• Volume=231m^3
• Height=h

$\boxed{\sf Volume=\pi r^2h}$

$\\ \sf\longmapsto π(0.7)^2h=231$

$\\ \sf\longmapsto 0.49πh=231$

$\\ \sf\longmapsto πh=\dfrac{231}{0.49}$

$\\ \sf\longmapsto 3.14h=471.4$

$\\ \sf\longmapsto h=\dfrac{471.4}{3.14}$

$\\ \sf\longmapsto h=150m$