document.write( "Question 127222: find the area of the space enclosed by two concentric circles of radii 15cm & 13cm. \n" ); document.write( "
Algebra.Com's Answer #93200 by edjones(8007)![]() ![]() You can put this solution on YOUR website! pi*r^2=A \n" ); document.write( "pi*15^2=225*pi \n" ); document.write( "pi*13^2=169*pi \n" ); document.write( "-------------subtract \n" ); document.write( "=========56*pi cm Ans \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " \n" ); document.write( " |