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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
Why is pi used in circle?
Because the ratio of the circumference of any circle to its diameter is pi.
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)
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