Question

hight of a cylindric drum is 42 cm.find the radius of the drum if the capacity of that drum is 118.8 litre​

Answer 1

Answer:

30 cm

Step-by-step explanation:

h= 42 cm

1 liter = 1000 cubic cm

volume of cylinder = height × area of cross section

capacity means volume = pi x rxrxh

118.8 x1000 = 22/7 *r*r*42

r^2 =. 118800*7 /22*42

=118800/ 22 * 6

= 19800/22

=9900/11

=900

r= 30 cm