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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
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
Thank you..i kept getting the same as the diameter and thought that was wrong...but its right! Thanks! ;)
Its okay, glad I could help!