Question

A conical pit of top diameter 9.4 m is 12 m deep. What is its capacity in kilolitres?​

Answer 1

Answer:

If a conical pit of top diameter 9.4 m is 12 m deep, then its capacity in kilolitres is​ 277.45 kilolitres.

Step-by-step explanation:

The volume of a cone having radius 'r', and height 'h' = 1/3πr²h

Diameter of the conical pit, 'd' = 9.4m

The radius of the conical pit, 'r' = 9.4/2 m =4.7 m

Depth of the conical pit, 'h' = 12m

The volume of conical pit = 1/3πr²h

= 1/3 × 3.14 ×4.7 m × 4.7 m × 12 m

= 1 × 3.14 ×4.7 m × 4.7 m × 4

=277.4504 m³

= 277.45× 1 kilolitres  (1m³ = 1000 Litres = 1 kilolitres)

= 277.45 kl

The capacity of the conical pit is 277.45 kilolitres.