Question

15. A water tank is a right circular cylinder in shape. The diameter of its base 56 m and its depth is 10 m. Determine how many litres of water can it hold ?​

Answer 1

volume of cylinder =πr^2h

diameter=28 M⇒ radius =28÷2 =14 m

height =7 M

volume of cylinder =[22/7]×14^2×7

volume of cylinder =[22/7]×14×14×7

volume of cylinder =22×14×14

volume of cylinder =4312 cubic m water in the tank

1 cubic meter= 1000 liters ⇒ 1 kilo lit

∴4312 cubic m =4312 kilo lit of water can it hold

Answer 2

Answer:

Diameter of base of cylindrical tank = 56 m

radius = 562= 28 m

Depth of cylindrical tank = 10 m

volume of cylindrical tank= πr^2h 

= 227×(28)^2×10 

= 227×28×28×10 

= 24640 m^3

volume of water the tank can hold = 24640×1000 = 24640000 litres