Question

The ratio of the circumference of a circle to twice the diameter of the circle is

• A. $\frac{\pi }{4}$
• B. $\frac{\pi }{2}$
• C. $\pi$
• D. $2\pi$
• E. $4\pi$

Answer 1

The correct option is B $\frac{\pi }{2}$

We know the circumference of a circle is $2\pi r$ which is equal to $\pi d$ as twice of radius is diameter, $2r=d$.
Ratio of circumference of a circle to twice of diameter will be $\frac{\pi d}{\stackrel{`}{2d}}=\frac{\pi }{2}$.