document.write( "Question 233194: If the radius of a circle is decreased by 40% , by what percent is the area decreased ? \n" ); document.write( "
Algebra.Com's Answer #172132 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! If the radius of a circle is decreased by 40% , by what percent is the area decreased ? \n" ); document.write( "------------- \n" ); document.write( "Area is a function of the square of the radius. \n" ); document.write( "If r2 = 0.6r1, then \n" ); document.write( "Area2 = Area1*(0.6)^2 \n" ); document.write( "Area2 = 0.36Area1 \n" ); document.write( "That's a decrease of 64% \n" ); document.write( " |