5. A class measured the radius r, circumference C, and area A of various circular objects. The results are recorded in this table. A² (4) ² r (cm) C (cm) A (cm²) ( = 2 * (4) = 25,12 C 4 5 8 12 25 31.5 50 75 50 78.5 201 iM 452 Illustrative Mathematics a. Does there appear to be a proportional relationship between circumference and area? Explain or show your reasoning. Yes 5024 cc TC in there proportional relationship between Circuference and area = 27C (5) ² = 31.42 Tc (5)² = 78.54 b. Does the equation A = r. C describe the relationships in the table? Explain your reasoning, no

5. A class measured the radius r, circumference C, and area A of various circular objects. The results are recorded in this table. A² (4) ² r (cm) C (cm) A (cm²) ( = 2 * (4) = 25,12 C 4 5 8 12 25 31.5 50 75 50 78.5 201 iM 452 Illustrative Mathematics a. Does there appear to be a proportional relationship between circumference and area? Explain or show your reasoning. Yes 5024 cc TC in there proportional relationship between Circuference and area = 27C (5) ² = 31.42 Tc (5)² = 78.54 b. Does the equation A = r. C describe the relationships in the table? Explain your reasoning, no

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter61: Areas Of Circles, Sectors, And Segments

Section: Chapter Questions

Problem 24A: A piece shown by the shaded portion is to be cut from a square plate 128 millimeters on a side. a....

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