Question

A solid is in the form of a cylinder with hemispherical ends.The total height of the solid is 20cm and diameter of cylinder is 7cm.Find the total volume of the solid(Use π=22/7)

Answer 1

Answer:

1937.833 cm^2

Step-by-step explanation:

total height = h+2r=h+d=20cm

d=7cm

h=20-7=13cm

volume of cylinder =

$\pi {r}^{2} h$

=22/7×(7÷2)×(7÷2)×13

=500.5 cm^2

volume of 2 hemispheres =

$2 \times( 2 \div 3)\ \times \pi{r}^{3}$

=2×2/3×22/7×7/2×7/2×7/2

=1437.33 cm^2

therefore, total volume of solid =500.5+1437.33

=1937.833cm^2