Question

Find the perimeter of a circle whose radius is 7 cm (in cm)

• A. $12\pi$
• B. $14\pi$
• C. $16\pi$
• D. $10\pi$

Answer 1

The correct option is B $14\pi$

Perimeter of a circle $=2\pi r$, where r is the radius of the circle
So, perimeter of the given circle $=2\times \pi \times 7=14\pi$