document.write( "Question 698318: Dear Tutor, may you please help me on this problem? May you also show me the steps so I can understand the steps on how to do this proem, thank you!\r
\n" ); document.write( "\n" ); document.write( "The circumference of a circle is 88cm. Find the area of the circle. (π(pi)=22/7)\r
\n" ); document.write( "\n" ); document.write( "Let the radius of the circle be r,
\n" ); document.write( "________________________ r=________
\n" ); document.write( "Area of the circle=_______________=________\"cm%5E2\"\r
\n" ); document.write( "\n" ); document.write( "Thank You!
\n" ); document.write( "

Algebra.Com's Answer #430597 by neatmath(302)\"\" \"About 
You can put this solution on YOUR website!

In this case, you need to work backwards to find the radius of the circle!
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\n" ); document.write( "\n" ); document.write( "The formula for the circumference of a circle is \"C=2%2Api%2Ar\"
\r
\n" ); document.write( "\n" ); document.write( "We know that \"C=88\" and we know \"pi=22%2F7\"
\r
\n" ); document.write( "\n" ); document.write( "Just substitute those values into our formula:
\r
\n" ); document.write( "\n" ); document.write( "\"88=2%2A%2822%2F7%29%2Ar\"
\r
\n" ); document.write( "\n" ); document.write( "\"88=%2844%2F7%29%2Ar\"
\r
\n" ); document.write( "\n" ); document.write( "\"88%2A%287%2F44%29=r\"
\r
\n" ); document.write( "\n" ); document.write( "\"2%2A7=r\"
\r
\n" ); document.write( "\n" ); document.write( "\"r=14\" cm
\r
\n" ); document.write( "\n" ); document.write( "Now that we have our radius, we can use our Area formula:
\r
\n" ); document.write( "\n" ); document.write( "\"A=pi%2Ar%5E2\"
\r
\n" ); document.write( "\n" ); document.write( "\"A=%2822%2F7%29%2A14%5E2\"
\r
\n" ); document.write( "\n" ); document.write( "\"A=%2822%2F7%29%2A196\"
\r
\n" ); document.write( "\n" ); document.write( "\"A=4312%2F7\"
\r
\n" ); document.write( "\n" ); document.write( "\"A=616\" \"cm%5E2\"
\r
\n" ); document.write( "\n" ); document.write( "I hope this helps! Keep practicing! :)
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