Answer Key to Math Practice Worksheet for Area, Circumference from Radius, Diameter

Area, Circumference from Radius, Diameter
Version 1
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Calculate the area and circumference of each circle. Use pi=3.14.

 c = 25.12, a = 50.24 

 

 c = 12.56, a = 12.56 

 

 c = 12.56, a = 12.56 

 c = 18.84, a = 28.26 

 

 c = 25.12, a = 50.24 

 

 c = 6.28, a = 3.14 

 c = 31.40, a = 78.50 

 

 c = 18.84, a = 28.26 

 

 c = 6.28, a = 3.14 

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