Question

A right triangle with sides 7 cm and 12 cm forming a right angle is revolved about the 12 cm side. Find the volume of the cone so obtained.
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Answer 1

Answer:

Step-by-step explanation:

Answer 2

The volume of cone so obtained is 154 cubic cm.

Step-by-step explanation:

Since we have given that

a right triangle is revolved about the 12 cm side so, it will form cone with height 12 cm.

Height of cone = 12 cm

Diameter = 7 cm

Radius = 3.5 cm

So, volume of cone would be

$\dfrac{1}{3}\times \pi r^2h\\\\=\dfrac{1}{3}\times \dfrac{22}{7}\times 3.5\times 3.5\times 12\\\\=154\ cm^3$

Hence, the volume of cone so obtained is 154 cubic cm.

# learn more:

Right angle triangle ABC with sides 5 cm 12 cm and 13 cm is revolved about the side 12 cm find the volume of solid so obtained

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