A bucket is a frustum with radii 20 cm (top) and 10 cm (bottom) and height 21 cm.
How many litres of water can it hold? (use π = 22/7, answer in litres to two decimals.)

Question

A bucket is a frustum with radii 20 cm (top) and 10 cm (bottom) and height 21 cm. How many litres of water can it hold? (use π = 22/7, answer in litres to two decimals.)

Accepted Answer

15.4. V = 1/3 π h (R^2 + Rr + r^2) = (1/3)(22/7)(21)(400 + 200 + 100) = (1/3)(22/7)(21)(700) = (22)(700) = 15400 cm^3. In litres = 15400/1000 = 15.40 L.

A bucket is a frustum with radii 20 cm (top) and 10 cm (bottom) and height 21 cm.
How many litres of water can it hold? (use π = 22/7, answer in litres to two decimals.)

Step-by-Step Solution

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More Class 10 Volume of Combined Solids practice

A bucket is a frustum with radii 20 cm (top) and 10 cm (bottom) and height 21 cm.How many litres of water can it hold? (use π = 22/7, answer in litres to two decimals.)

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Volume of Combined Solids practice

A bucket is a frustum with radii 20 cm (top) and 10 cm (bottom) and height 21 cm.
How many litres of water can it hold? (use π = 22/7, answer in litres to two decimals.)