Answer :
To determine the length of a cylindrical wire made from 2.2 dm³ of copper, calculate the volume of the wire using the given diameter and volume of copper, resulting in a length of 112 cm (option C) is the correct answer.
Cylindrical wire: To find the length of the wire, we first calculate the volume of copper in dm³, then use this volume to determine the length of the cylindrical wire.
Given: Volume of copper = 2.2 dm³, Diameter of wire = 0.50 cm
Calculation: Volume of cylindrical wire = Volume of copper, Length of wire = Volume / (π * (diameter/2)²)
Answer: The correct option is (C) 112 cm.
