Question

8t5
A right triangle ABC with sides 5cm, 12cm and 13cm is revolved about the side
12cm Find the volume of the solid so obtained If the triangle ABC is revolved about
the side 5 cm, then find the volume of the solid obtained. Find also the ratio of the
volumes of the two solids obtained in both cases​

Answer 1

Answer:

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Step-by-step explanation:

let hypotenuse =13cm

given triangle revolves around 12cm

radius=5cm

height=12cm

volume=1/3PI×r^2×H

volume=1/3×PI×5×5×12

vol.=100PIcm ^3 (nearly)

second case,

r=12cm

h=5cm

vol.=1/3×PI×12×12×5

vol.=240PI cm^3

the ratio is 100/240

5:12