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

Given: r = 3.5/2 = 1.75m, h = 12m
⇒Volume of cone = (1/3)πr²h = (1/3) × (22/7) × 1.75 × 1.75 × 12 = 38.5m³ = 38.5 kl (1 kl = 1m³)