How can you make a straight line from a circle?

Question

How can you make a straight line from a circle?

Answer 1

cut it in half and you'll have the diameter , that in half would be the radius lol i tried there! coudnt think of anything better XD

Answer 2

I can't, and I doubt that nobody else can either.  

They're two entirely different things.

It's rather like asking "how can you make an apple from an orange?"

Answer 3

Try Google

Answer 4

Look at it from the side.

Look at a quarter face-first, it's a circle.  rotate it 90 degrees to look at it from its side, and it's a straight line.

Answer 5

Make the circle and then a straight line down or up

Answer 6

just stretch the circle...

Answer 7

measure the radius 'r'

2pir is the circumference

length of the circle is 2*pi*r

Answer 8

By straightening it out.

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