Maths-
General
Easy

Question

A Cylinder tank has a diameter 75 cm and height 1.8 m, Find the capacity in litres to three significant figures.

hintHint:

The volume of a cylinder tank with base radius  r  and height  h, is pi r squaredh cubic units.

The correct answer is: The capacity of the tank is 795.536 L


    Explanations:
    Step 1 of 2:
    The cylinder tank has a diameter 75 cm, therefore its radius,  r = 75/2 cm
    The height is given by, h = 1.8 m = 180 cm (since 1 m = 100 cm)
    Step 2 of 2:
    Capacity of tank = volume of tank = volume of cylinder
    equals pi open parentheses 75 over 2 close parentheses squared cross times 180
    equals 22 over 7 cross times 75 over 2 cross times 75 over 2 cross times 180
    equals 795535.72 cm cubed
    equals 795.536 straight L open parentheses text  since  end text 1 straight L equals 1000 cm cubed close parentheses
    Final Answer:
    The capacity of the tank is 795.536 L

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