Question

7. The volume of a cylinder is 30 × 3.14 сm^3 and area of
base is 6 ×3.14 cm², then find height of cylinder.​

Answer 1

Answer:

Hey mate I don't know the exact answer

Answer 2

Answer:

The height of the cylinder is 5 cm.

Step-by-step explanation:

Given that-

$Volume \ of \ a \ cylinder (V) = 30 \times3.14 \ cm^{3}$

$Area \ of \ base = 6 \times 3.14 cm^{2}$

Height =?

We know that-

$Volume \ of \ cylinder = \pi r^{2}h$

Where h is the height of the cylinder

$30 \times 3.14 = \pi r^{2}h$

$h = \dfrac{30 \times 3.14}{\pi r^{2} }$

Given that-

$Area \ of \ base = 6 \times 3.14 cm^{2}$

$\pi r^{2} = 6 \times3.14 cm^{2}$           {Area of the base of a cylinder i.e cirlce}

So, height of the cylinder-

$h = \dfrac{30 \times3.14}{6 \times 3.14}$

h = 5 cm

Hence, the height of the cylinder is 5 cm.