A water tank in the shape of a prism has isosceles trapeziums as bases whose dimensions are shown below.
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The length of the tank is 80 centimetres. How many litres of water can it contain?

The inner side of a rectangular tank are 70 centimetres, 80 centimetres, 90 centlmetres. How many litres of water can it contain?

A rectạngular water tank has inner dimensions 5 metres, 4 meters and 2 meters. How many litres of water it contain?

Write the results of the operations below as decimals i) 0.333....+0.555... ii) (0.777...)^2

a) A water tank in the shape of a cylinder contains water to a depth of 1 metre. Radius of the cylinder is 2 metre and its height is 11 metres. How many litres of water is there in tank? (pi=3.14,1 cubic metre =1000 litres) b) How much mơre litres of water is required to fill the tank completely?