Question

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

Answer 1

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

Diameter = 114.91

Answer 2

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,

`(361)/(\pi )=\pi d`

Answer: Diameter is given by:

`d=(361)/(\pi ^(2) )`