document.write( "Question 203220: What is the area and circumference of a circle with diameter 22 mm? (Give exact solutions. Include correct units with each!) \n" ); document.write( "
Algebra.Com's Answer #153334 by edjones(8007)\"\" \"About 
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d=22, r =11
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\n" ); document.write( "A=pi*11^2=121pi mm^2
\n" ); document.write( "C=22pi mm
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\n" ); document.write( "There cannot be an \"exact\" answer because pi is an irrational number, a number that cannot be expressed as a fraction.
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