how many litres of water would be stored in a cylinder 90cm x 6 feet?

Answer 1

First convert the measurements given to inches
90 cm = 90 * 0.3937= 35.433 inches
6 feet = 72 inches

Now, find the volume of the cylinder applying the formula:
Volume of Cylinder = pi * radius2 * height
Assuming 90 cm i.e. 35.433 is the radius of the cylinder and 6 feet i.e. 72 inches its height we get
3.143 * 35.433 * 35.433 * 72 = 284114.03 cubic inches

Now convert cubic inches to litres by multiplying your answer with 0.01639. This equals 4656.6289 or say 4657 litres (rounded to nearest integer)

Hence, the cylinder would be able to store 4657 litres of water.

Answer 2

assuming that 90 cm is the diameter of the cylinder and 6 feet is the length ....

The radius (r) is 45 cm.
The cross sectional area is Pi x r squared
= 3.1428 x 2025
= 6364 square cm

The volume = cross sectional area x length
6 feet = approx. 180 cm
Therefore volume = 6364 x 180 = 1145520 cubic centimeters

There are 1,000 cubic centimeters per liter, therefore 1145520 cc = 1145.52 liters

Answer 3

V=pi x radius squared x height
v=22/7x 45 x 45 x 182.88 Radius = 1/2 of diameter. 6 feet = 6x12x2.54= 182.88 cm. 1 liter = 1000 cubic centimeters.
V=22/7x45x45x182.88.
V=1,163,900.5 cu. cm.
Liters = 1,163,900.5/1000
Liters= 1,163.905