Mathematics, 19.02.2020 20:24 daytonalive7193

Which statement is true about the relationship between the diameter and circumference of a circle?

The unit rate between the circumference of a a circle and its diameter is pi.

The constant of proportionality between circumference of a circle and its diameter is 2.

The relationship between the diameter and circumference of a circle is not proportional.

The circumference of a circle is 3 times the diameter.

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Which statement is true about the relationship between the diameter and circumference of a circle?