document.write( "Question 1141982: Circle O (not shown) has an area of 81π square units. Circle P had a radius that is 2 units shorter than the radius of circle O . What is the diameter of circle P? \n" ); document.write( "
Algebra.Com's Answer #762631 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! area is pi*r^2 \n" ); document.write( "81*pi=r^2 \n" ); document.write( "r^2=81 \n" ); document.write( "r=9 units\r \n" ); document.write( "\n" ); document.write( "circle of radius of 7 units would have an area of pi*7^2=49pi square units \n" ); document.write( " |