SOLUTION: What is the area and circumference of a circle with diameter 22 mm? (Give exact solutions. Include correct units with each!)

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Question 203220: What is the area and circumference of a circle with diameter 22 mm? (Give exact solutions. Include correct units with each!)
Answer by edjones(7569) About Me  (Show Source):
You can put this solution on YOUR website!
d=22, r =11
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A=pi*11^2=121pi mm^2
C=22pi mm
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There cannot be an "exact" answer because pi is an irrational number, a number that cannot be expressed as a fraction.
.
Ed