Question

Find the volume of hemisphere whose diameter is 20 cm.

Answer 1

given
diameter of hemisphere = 20cm
radius of hemisphere = 10cm
To find = volume of hemisphere
volume of hemisphere = 2/3*pie*r^3
= 2/3*22/7*10*10*10
= 44000/21
= 2095.24cm

Answer 2

The volume of the hemisphere = 2095.24 cm³

Given :

The diameter of a hemisphere is 20 cm

To find :

The volume of the hemisphere

Formula :

Volume of a hemisphere with radius r unit

$\displaystyle \sf = \frac{2}{3} \pi {r}^{3} \: \: {unit}^{3}$

Solution :

Step 1 of 2 :

Calculate the radius of the hemisphere

Here it is given that the diameter of a hemisphere is 20 cm

∴ The radius of the hemisphere

= r

$\displaystyle \sf = \frac{20}{2} \: \: cm$

= 10 cm

Step 2 of 2 :

Calculate the volume of the hemisphere

The volume of the hemisphere

$\displaystyle \sf = \frac{2}{3} \pi {r}^{3} \: \: {cm}^{3}$

$\displaystyle \sf = \frac{2}{3} \times \frac{22}{7} \times {10}^{3} \: \: {cm}^{3}$

$\displaystyle \sf = \frac{44000}{21} \: \: {cm}^{3}$

$\displaystyle \sf \approx \: 2095.24 \: \: {cm}^{3}$

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

$1.$ How many tiles of side 50 cm will be required to flour the the square hall fo side 8 m?

https://brainly.in/question/35572136

2. A rectangle is made from a 20 cm long thin wire .If the breadth of the rectangle is 3 cm , then what is the length of th...

https://brainly.in/question/34792847

#SPJ3