Question

A hemisphere of radius 8 cm is cut out from a right circular cylinder of diameter 80 mm and height 160 mm then what will be the centre of gravity of the body from the base ab

Answer 1

Answer:

Volume of right circular cylinder =

\pi \: r {}^{2} hπr2h  

=22/7×14×14×28 =

17248cm {3}^{}17248cm3  

Volume me of hemisphere =2/3πr×r×r

=2/3×22/7×14×14×14

=

5749.3cm {}^{3}5749.3cm3  

Total volume of solid =17248+5749.3

=

22997.3cm {}^{3}22997.3cm3  

Step-by-step explanation: