Question

A circle has a circumference of 361\pi What is the diameter of the circle?

Answer 1

The circumference of a circle is given by:

$C=2\pi r$

Where r is radius of the circle .

Now the relation between radius and diameter is given as:

Radius * 2 =Diameter

So replacing 2r by "d" in the equation of circumference,

$C=\pi d$

We are given value of circumference as 361/pi

Plugging this value in the formula for circumference,

$\frac{361}{\pi }=\pi d$

Answer: Diameter is given by:

$d=\frac{361}{\pi ^{2} }$

Answer 2

A circle with a circumference of 361/pi has a diameter of 114.91

Diameter = 114.91