Question

A cylindercal water tank contain 38.5 liters of water if its height is 10 m find the diameter

Answer 1

Answer:

Diameter = 7 cm

Step-by-step explanation:

Given-

height of cylinder = 10 m = 1000 cm

No of liters the tank contains = 38.5 L

To Find = diameter of the water tank

Solution-

we know that 1 L = 1000 cm³

so, 38.5 L = 38,500 cm³

Volume of cylinder = πr²h

38,500 = 3.14 (r)² 1000  

38,500 = 3140 (r)²

38,500/3140 = (r)²

(r)² =  12.26

r = √12.26

r = 3.5 cm

Diameter = 2r

               = 2 (3.5)

               = 7 cm