A conical pit of top diameter 3.5 m is 12 m deep. What is its capacity

1.	A conical pit of top diameter 3.5 m is 12 m deep. What is its capacity in kilolitres?
Answer» We have, Radius of conical pit = \(\frac{3.5}{2}\) = \(\frac{7}{4}\)m Depth of pit 'h' = 12 m Volume = \(\frac{1}{3}\)πr²h = \(\frac{1}{3}\) x \(\frac{22}{7}\) x 1.75 x 1.75 x 12 = 38.5 m³ Since, 1m³ = 1 kiloliter Capacity of the pit = (38.5 × 1) = 38.5 kilolitres

A conical pit of top diameter 3.5 m is 12 m deep. What is its capacity in kilolitres?

Answer»

We have,

Radius of conical pit = \(\frac{3.5}{2}\) = \(\frac{7}{4}\)m

Depth of pit 'h' = 12 m

Volume = \(\frac{1}{3}\)πr²h

= \(\frac{1}{3}\) x \(\frac{22}{7}\) x 1.75 x 1.75 x 12

= 38.5 m³

Since,

1m³ = 1 kiloliter

Capacity of the pit = (38.5 × 1)

= 38.5 kilolitres