# The capacity of a cylindrical tank at a petrol pump is 57750 litres. If its diameter is 3.5 m, find the height of cylinder.

Given.

Capacity of petrol tank = 57750 litres

Diameter of tank = 3.5 m

Formula used/Theory.

Volume of cylinder = πr2h

1m3 = 1000 litres

= = 1.75

Let’s take height of tank to be h

Volume of cylinder = πr2h

= × 1.75 × 1.75 × h

9.625 × h m3

Volume in litres = 57750 litres

1 m3 = 1000 litres

Volume = 9.625 × h × (1 m3)

= 9.625 × h × 1000 litres

57750 = 9625 × h

h = = 6 m

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