Question : The diameter of a circle is 42 cm. What is the difference between the lengths of the circumference and the radius of the circle? [Use
Option 1: 98 cm
Option 2: 94 cm
Option 3: 111 cm
Option 4: 105 cm
Correct Answer: 111 cm
Solution :
The diameter of the circle is 42 cm, so the radius(
The circumference (
Substituting the given values into the formula,
So, the difference between the lengths of the circumference and the radius of the circle
=
Hence, the correct answer is 111 cm.