I understand that it IS pi, but I don’t understand what “ratio of the circumference of any circle to the diameter” means.
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By the way, to add to it: “ratio” in math means a relationship between two numbers. It works out as though you’re setting them up as a fraction:
– The ratio of 6 to 2 is 3. (6 is 3 times bigger than 2. Or you could just say 6/2 = 3.)
– The ratio of an 1,000 foot building to a 500 foot building is 2. (1,000 is 2 times bigger than 500. Or you could just say 1000/500 = 2).
– The ratio of the circumference of a circle to its diameter is about 3. Actually it’s exactly 3.141519…. (Circumference/diameter = pi)
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