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

Question

asked Feb 5, 2019 165k views

2 Answers

Skeppet · Answer 1 · 2019-02-09T16:58:33+0000

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:

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