In this video you will learn how to work out the diameter of a circle from its circumfernce. You can do this in one step by dividing the circumfernce by Pi. Either use you Pi key or type in 3.142 if you dont have a scientific calculator. So in example 1 the circle has a circumfernce of 64m and you need to find the diameter. So to work it just divide 64 by Pi.

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