The cylindrical barrel contains 6.283185 cubic meters of water.
How to find volume?
To calculate the volume of water in the cylindrical barrel:
Calculate the volume of the entire barrel:
Volume of a cylinder = πr²h
π (3.14159) = constant
r = radius = 1 m
h = height = 2 m
Therefore, the volume of the entire barrel is:
= π × 1² × 2
= 6.283185 × 2
= 12.56637 m³
Since the barrel is half filled with water, divide the total volume by 2.
= 12.56637 m³ / 2
= 6.283185 m³
Therefore, the cylindrical barrel contains 6.283185 cubic meters of water.