Unlimited attempts. Message instructor about this question Post this question to forum Consider using a circle's radius as the unit for measuring its circle's circumference. a. If you were to measure

any circle's circumference, C, using its radius, r, as the unit of measure, the measurement would be Preview b. As the circle's radius and circumference vary together, the circle's circumference C is always circle's radius, r. c. Determine if the following statement is true or false: Select an answer Since a circle's circumference C is proportional to its radius r, it follows that C is changing at a constant rate of change with r. d. For any change in a circle's radius, Ar, the circle's circumference changes by Preview e. Since a circle's diameter is 2 times as long as its radius, we can also define a circle's circumference in terms of its diameter, d, by writing C = Preview times as large as the f. Think about the meaning of the formula for circumference in terms of diameter you wrote above. The circumference, C, of any circle is always times as large as its diameter, d. If we measure a circle's circumference using its diameter as the unit of measurement, the answer will always be: Preview C Select an answer Since =, we know that r (or about 3.14) is the constant that represents the relative size, or how many times as large, a circle's circumference is as its diameter. Submit Question 12. Points possible: 31 License