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Earn +20 ptsQ: Which ratio is called pi?
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What is the ratio of the circumferece of a circle to its diameter called?
circumference:diameter = pi (about 3.14...)
What is the ratio of a circle's circumference C to its diameter D?
The ratio is called pi and it is an irrational number which is approx equal to 3.14159
What is the ratio of the circummference of a circle to its diameter called?
pi = circumference of a circle divided by its diameter
What is the ratio between radius and area for a circle?
There is no direct ratio. The area is related to the square of the radius by the factor "pi." A = (pi) r2 (Pi is about 3.1416)
Why is pi used in circle?
Because the ratio of the circumference of any circle to its diameter is pi.
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