Question

find the volume of cylinder Diameter = 20 cm Hight =21 cm​

Answer 1

Step-by-step explanation:

V of cylinder = pie r2 h

r= 10

H=21cm

= 22/7×10×10×21

=22/7×100×21

=22/7×2100

=22×300

=6600

V. Of cylinder = 6600cubiccm..

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Answer 2

Given,

Dia= 20cm

Height = 21cm

Sol:- diameter/2= radii

radii= 20/2

= 10 cm

$volume = \pi \times r {}^{2} \times h$

$\: \: = \frac{22}{7} \times 10 {}^{2} \times 21$

$\: \: = 22 \times 100 \times 3$

$6600cm {}^{3}$