1. Calculate the circumference of each circle, leaving your answer in terms of pi

a) diameter =20cm b) diameter =8mm c) radius =10m d) radius =3mm

Posted Fri 15th February, 2013 @ 13:46 by

Prabhi xx
a) 20pi

b) 8pi

c) 20pi

d) 6pi

The formula for circumference is Diameter X Pi, so all you need to do is write your answer with pi next to it.

For C & D, the measurements are in radius. 2 X Radius = Diameter

Hope this helps :)

But dont actually write 'pi' write the symbol ;P

Answered Fri 15th February, 2013 @ 15:45 by

:) PurpleJaguar (: - Team GR
Thank you..i kept getting the same as the diameter and thought that was wrong...but its right! Thanks! ;)

Answered Fri 15th February, 2013 @ 15:54 by

Prabhi xx
Its okay, glad I could help!

:)

Answered Fri 15th February, 2013 @ 15:55 by

:) PurpleJaguar (: - Team GR