document.write( "Question 1078977: a square pyramid's base has a perimeter of 96 cm and a total surface area of 2352 square cm. \r
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document.write( "a) find its volume \r
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document.write( "b) how many liters will fit in this pyramid \n" );
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Algebra.Com's Answer #693437 by Boreal(15235) You can put this solution on YOUR website! Perimeter is 96 cm so side is 24 cm and area of base is 24^2=576 cm^2 \n" ); document.write( "that leaves 1776 cm^2 for 4 sides, so each side has to have an area of 444 cm^2. \n" ); document.write( "The base is 24 cm, and the slant height must be 37 cm, so that 1/2*b*h=444 \n" ); document.write( "The volume needs h, which is 12^2+h^2=37^2, where the slant height becomes the hypotenuse. \n" ); document.write( "144+h^2=1369 \n" ); document.write( "h^2=1225 \n" ); document.write( "h=35 cm \n" ); document.write( "V=(1/3)Bh=(1/3)*573*35=6685 cm^3 \n" ); document.write( "That is 6.685 liters. \n" ); document.write( " |