Question

Find the volume of hemisphere with diameter 14 cm.
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Answer 1

Answer :

• Volume of hemisphere is 718.6 cm³

Given :

• Diameter = 14cm

To find :

• Volume of hemisphere

Solution :

First we need to find radius

As we know that,

• Radius = Diameter/2 = 14/2 = 7cm

Hence, Radius is 7cm

Now we need to find the volume of hemisphere,

As we know that ,

• Volume of hemisphere = 2/3πr³

》2/3πr³

》2/3 × 22/7 × 7 × 7 × 7

》44 × 49 / 3

》2156/3

》718.6 cm³

Hence , Volume of hemisphere is 718.6 cm³

Answer 2

Question :

Find the volume of hemisphere with diameter 14 cm.

Answer :

• The volume is 718.66 cubic metre .

$\sf\pink {Given :}$

• diameter of hemisphere is 14 cm .

$\sf\pink {To\:find :}$

• volume of the hemisphere ?

Explanation :

Radius = $\sf {\dfrac {1}{2}}$ × diameter

Radius = $\sf {\dfrac {1}{2}\times 14}$

Radius = 7 cm .

Volume of hemisphere = $\\ \sf {\dfrac {2}{3} \pi {r}^{3}}$

$\\ \longrightarrow\sf{\dfrac {2}{3}\times \dfrac {22}{7}\times {7}^{3}}$

$\\ \longrightarrow\sf{\dfrac {2}{3}\times \dfrac {22}{7}\times 343}$

$\\ \longrightarrow\sf{\dfrac {2}{3}\times 22\times 49}$

$\\ \longrightarrow\sf{\dfrac {2156}{3}}$

$\\ \longrightarrow\sf{718.66}$

• Therfore the volume is 718 . 66 cubic metre .