document.write( "Question 1138613: How many whole rectangular firebricks measuring 9\"x4.5\" will fit on the floor of a 38\" diameter round firepit? Voids left by the firebricks just inside of the perimeter of the circle are acceptable; no bricks will be cut. Thanks! \n" ); document.write( "
Algebra.Com's Answer #756407 by ikleyn(52803)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "\r\n" ); document.write( "I do not think that this problem assumes getting precisely correct number of firebricks.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "I think that obtaining a reasonable estimation is totally enough.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "To get the estimation, take the area of the circle and divide it by the area of one single firebrick.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "The area of the circle is\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Another, more conservative estimation is to increase the radius of the circle by half the diagonal of the firebrick \n" ); document.write( "and re-estimate with this new data.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "By knowing the idea, you can make all necessary calculations on your own.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-------------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "To wide your horizon, you may want to look some sources from the Internet\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "https://math.stackexchange.com/questions/2984061/cover-a-circle-with-squares\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |