document.write( "Question 587207: A cube is 8 inches on each side. What is the height of a cylinder having the same volume, if its radius is 4 inches? \n" ); document.write( "
Algebra.Com's Answer #374027 by Schaman_Dempster(26)![]() ![]() You can put this solution on YOUR website! We know that side length of a cube is 8 inches.\r \n" ); document.write( "\n" ); document.write( "Volume of the cube = \n" ); document.write( " V(cube) = \n" ); document.write( " V(cube) = 512 cubic inches\r \n" ); document.write( "\n" ); document.write( "WE know that the radius of the cylinder is r = 4 inches and let the height of the cylinder be h inches. \n" ); document.write( "Volume of the cylinder = π \n" ); document.write( "V(cylinder) = \n" ); document.write( "V(cylinder) = 16πh\r \n" ); document.write( "\n" ); document.write( "Since the volume of cube and cylinder are same, so\r \n" ); document.write( "\n" ); document.write( "V(cylinder) = V(cube) \n" ); document.write( "or 16πh = 512 \n" ); document.write( "or πh = 512/16 {Dividing both the sides by 16} \n" ); document.write( "or πh = 32 \n" ); document.write( "or h = 32/π inches \r \n" ); document.write( "\n" ); document.write( "If we wish to get the decimal value fo h, we can use the standard value of π = 3.14\r \n" ); document.write( "\n" ); document.write( "Therefore, h = 32/π = 32/3.14 \n" ); document.write( "or h = 10.189 \n" ); document.write( "or h = 10.2 inches (approximately)\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Hope this helps~! \n" ); document.write( " |