What is the circumference of a circle whose radius is 10.5 cm?
Answer & explanation
Correct answer: option 2
Concept Used
Circumference of circle = 2\(\Pi \)r, where r = radius
Calculation
Circumference = 2 x \(\frac{22}{7}\) x 10.5 = 66 cm
Therefore, Circumference of circle is 66 cm.