Calculate the volume of a cylindrical barrel with a diameter of 80 cm and a height of 2 m.

The volume of a cylinder is equal to the product of the base area by the height:

V = S * h.

The area of the base (circle) is equal to:

S = π * r ^ 2.

The radius (r) is half the diameter. r = d / 2 = 80/2 = 40 cm.

S = 3.14 * r ^ 2 = 3.14 * 40 ^ 2 = 3.14 * 1600 = 5024 cm2.

Now you need to translate m into cm.2 * 100 = 200 cm.

V = 5024 * 200 = 1004800 cm3.

Now let’s convert the volume to liters. Knowing that 1 liter is equal to 1,000 cubic centimeters:

1004800/1000 = 1004.8 HP

Answer: The volume (V) of the barrel is 1004.8 liters. V = 1004.8 liters.