document.write( "Question 251516: What is the height of a cylinder whose surface area is 282.6 square inches and whose radius is 3 inches?
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Algebra.Com's Answer #183227 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! A=2PIRH+2PIR^2 \n" ); document.write( "282.6=2*3.14*3*H+2*3.14*3^2 \n" ); document.write( "282.6=18.84H+56.52 \n" ); document.write( "282.6-56.52=18.84H \n" ); document.write( "226.08=18.84H \n" ); document.write( "H=226.08/18.84 \n" ); document.write( "H=12 INCHES IS THE HEIGHT. \n" ); document.write( " |