Question

a conical pit having top diameater 7m is 12m deep what is its capacity in liters

Answer 1

Heya Frnd......... ☺

Height (h) = 12 m

Radius (r) = 7/2 m

Now,

Vol. of cone = ⅓πr²h

=> ⅓ × 22/7 × 7/2×7/2×12

=> 22 × 7

=> 154 m³

$= > \boxed{154000 \: litres }$
..................... ★ANS★

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HOPE IT WILL HELP U ☺☺☺

Answer 2

Hey friend , Harish here.

Here is your answer:

Given that,

Diameter = 7m, 

Depth or Height (h) = 12m.

To find,

The capacity of it in liters.

Solution:

We know that,

⇒ $Radius = \frac{Diameter}{2} = \frac{7}{2}\ m$

⇒ $Volume\ of\ cone = \frac{1}{3} \pi r^{2} h$

⇒  $\frac{1}{3} \times \frac{22}{7} \times \frac{7}{2}\times \frac{7}{2}\times 12$

⇒  $22\times 7 = 154\ m^{3}$

We know that,

⇒ $1\ m^{3} = 1000 L$

⇒ $154\ m^{3}=154 \times 1000\ = 154000\ Liters$

⇒ $\boxed{154000\ liters}$
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Hope my answer is helpful to you.