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9: Part A The diameter of a circle is 63 centimeters. ​Find its circumference. ​Use π=3.14. ​ A 31.5 centimeters B 98.91 centimeters C 197.82 centimeters D 3,115.67 centimeters ​ Part B Find the area of the circle. ( use π=3.14 ) ​ Round your answer to the nearest hundredth. Answer: square centimeters. ​

9 Part A The diameter of a circle is 63 centimeters Find its circumference Use π314 A 315 centimeters B 9891 centimeters C 19782 centimeters D 311567 centimeter class=

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Answer:

Part A is Answer C

C=2pi * r

D= 2r

C= 2 * 3.14 * 31.5

C= 197.82

__________________________

Part B is 3115.67 sq cm

A = 3.14 * r*r

A= 3.14 x 31.5x31.5

A=3115.665

Rounded: 3115.67

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