document.write( "Question 728395: If the radius of a circle is reduced by 10 percent, by what percent is the area decreased?
\n" ); document.write( "...My anwser is 20 percent.
\n" ); document.write( "

Algebra.Com's Answer #445413 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
If the radius of a circle is reduced by 10 percent, by what percent is the area decreased?
\n" ); document.write( "---------------
\n" ); document.write( "The radius is decreased to 0.9 of the original
\n" ); document.write( "Area is a function of the square of the radius --> Area is decreased to 0.9^2 of the original = 0.81
\n" ); document.write( "--> 19% decrease
\n" ); document.write( "
\n" ); document.write( "
\n" );