Question

Find the volume (in cm3 ) of a hemisphere of diameter 42 cm.

Answer 1

Vol. of hemisphere is 2/3 πr^2

diameter is 42 cm

radius is 21cm

2/3×22/7×21×21

924 cm^3

Answer 2

The volume of hemisphere is 19404 cm³.

Step-by-step explanation:

Given : A hemisphere of diameter 42 cm.

To find : The volume (in cm³) of a hemisphere ?

Solution :

A hemisphere of diameter 42 cm.

The radius is $r=\frac{42}{2}=21$

The volume of hemisphere is $V=\frac{2}{3}\pi r^3$

$V=\frac{2}{3}\times \frac{22}{7}\times (21)^3$

$V=2\times22\times 21\times 21$

$V=19404\ cm^3$

Therefore, the volume of hemisphere is 19404 cm³.

#Learn more

If the surface area of a sphere is 5544 cm2 find the volume

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