Question

The given figure represent a solid consisting of a cylinder surmounted by a cone at one end and a hemisphere at the other find the volume of the solid
Plzz give me answer fast

Answer 1

volume of cylinder + volume of cone+ volume of hemisphere - 2×area of circle ......use this n u will get the answer and if it doesn't work use 2× volume of circle because I m little confuse!!

Answer 2

Answer:

420.933 cubic cm

Step-by-step explanation:

Height of cone = 12.8 cm - 6.5 cm = 6.3 cm

Diameter of cone = 7 cm

Radius = 7/2 = 3.5 cm

Volume of cone = $\frac{1}{3} \pi r^2h = \frac{1}{3} \times \frac{22}{7} \times 3.5^2 \times 6.3 = 80.85cm^3$

Height of cylinder = 6.5 cm

Radius of cylinder = 3.5 cm

Volume of cylinder = $\pi r^2 h =\frac{22}{7} \times 3.5^2 \times 6.5=250.25 cm^3$

Radius of hemisphere  = 3.5 cm

Volume of hemisphere =$\frac{2}{3} \pi r^3 = \frac{2}{3} \times \frac{22}{7} \times 3.5^3=89.833 cm^3$

Total volume = 80.85+250.25+89.833 =420.933

Hence the total volume is 420.933 cubic cm