document.write( "Question 459840: Dimensions of a Quarter. The circumference of a quarter is 7.85cm. What is the diameter? Radius? The area?
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document.write( "I have done this problme over and over again, but still come up with the wrong answer! What am i doing wrong:
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document.write( "D= 7.85/2=
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document.write( "R= 3.14x7.85=
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document.write( "A=3.14x2.925x2.925\r
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document.write( "My book gave me the answer but I still can not figure out how to write the problem because my book does not explain how to do this one problem correcty?\r
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document.write( "Thank you for your help. \n" );
document.write( "
Algebra.Com's Answer #315353 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Dimensions of a Quarter. The circumference of a quarter is 7.85cm. What is the diameter? Radius? The area? \n" ); document.write( "--------- \n" ); document.write( "Circumference = (pi)d \n" ); document.write( "--- \n" ); document.write( "7.85 = (pi)d \n" ); document.write( "--- \n" ); document.write( "Diameter = 7.85/3.14 = 2.5 cm. \n" ); document.write( "----- \n" ); document.write( "Radius + (1/2)(2.5) = 1.25 cm \n" ); document.write( "----- \n" ); document.write( "Area = (pi)r^2 3.14*1.25^2 = 4.91 sq cm \n" ); document.write( "============================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================= \n" ); document.write( " \n" ); document.write( " |