Question

The volume of a cylinder is 108π cm and its height is 12 cm.

Answer 1

Answer:

$\bf \sqrt{15\pi \: cm} \approx 6,86468$

Step-by-step explanation:

r² = Vπ ÷ t

r² = 180π cm ÷ 12 cm

$\sf r = \sqrt{ \frac{180\pi \: cm}{12 \: cm } }$

$\sf r = \sqrt{15\pi \: cm} \approx 6,86468$

Conclusion:

The length of the radius of the cylinder is $\bf \sqrt{15\pi \: cm} \approx 6,86468$.

Answer 2

$\\ \sf\longmapsto \pi r^2h=108\pi$

$\\ \sf\longmapsto r^2h=108$

$\\ \sf\longmapsto 12r^2=108$

$\\ \sf\longmapsto r^2=\dfarac{108}{12}$

$\\ \sf\longmapsto r^2=9$

$\\ \sf\longmapsto r=\sqrt{9}$

$\\ \sf\longmapsto r=3$

• Radius is 3cm