document.write( "Question 103758: The surface area of a sphere varies directly with the square of its radius. If the surface area of a sphere with a radius of 12 inches if 576 square inches, find the surface area of a sphere with a radius of 3 inches \n" ); document.write( "
Algebra.Com's Answer #75407 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! the radius of the smaller sphere is 3/12 or 1/4 of the larger sphere\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the surface area is (1/4)^2 or 1/16 ... 576(1/16)=36 \n" ); document.write( " |