document.write( "Question 1017389: An ice rink is in the shape of a rectangle with semicircular ends. The straight\r
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document.write( "sides are 60m long and 30m apart. It is to be filled to a depth of 10cm with\r
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document.write( "ice. Calculate how many cubic metres of ice will be needed.\r
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Algebra.Com's Answer #633720 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! The volume of ice needed is the area of the rink times the depth, 0.1 m. \n" ); document.write( "The rink is a 60m by 30m rectangle. That area is 1800 m^2. \n" ); document.write( "The semi-circles at each end become a full circle whose radius is 15m \n" ); document.write( "Its area is A = (pi)r^2 = (3.14)(15^2) = 706.5 m^2 \n" ); document.write( "Thus the total area of the rink is \n" ); document.write( "1800 + 706.5 = 2506.5 m \n" ); document.write( "Now multiply that by the depth (0.1m) and we get \n" ); document.write( "V = 2506.5 * 0.1 = 250.65 cubic meters of ice. \n" ); document.write( " |