Question

Find the height of the cylinder whose volume is 1.54 m3 and diameter of the base is140 cm?

Answer 1

Diameter of the base = 140 cm
Radius (r) of the base = $\frac{140}{2} = 70\ cm =\frac{70}{100}\ m$
Volume of cylinder = $\pi r^2h$
$1.54 = (\frac{22}{7})×0.7×0.7×h$

$h = \frac{(1.54×7)}{(22×0.7×0.7)}$
h = 1 m

Hence, the height of the cylinder is 1 m.