Question

what is the exact circumference of a circle with the diameter of 25inches

Answer 1

Hi. Welcome to OpenStudy!
You first go about finding the radius. Can you do that?

Answer 2

You divide the diameter by 2.

Answer 3

circumference of a circle = 2rpi = pi d

Answer 4

Then, you use the formula \(\text{Circumference} = 2\pi r\)

Answer 5

Or, you could directly compute \(\pi \times d\).

Answer 6

now subsitute d = 25 inches

Answer 7

So, what is \(25 \times 3.14\)? @black12

Answer 8

I think 25*3.14 will not give the exact answer. It will only give the approximate value. so the exact value is simply 25 pi inches.

Answer 9

That is a point too :)