document.write( "Question 1037402: A children's play area is trI angular. The sides of the play area measure 90m, 225m and 255m respectively.
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Algebra.Com's Answer #652047 by ikleyn(52847)\"\" \"About 
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\n" ); document.write( "A children's play area is trI angular. The sides of the play area measure 90m, 225m and 255m respectively.
\n" ); document.write( "Calculate the area of the play area.
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\n" ); document.write( "\n" ); document.write( "Use the Heron's formula.\r
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\n" ); document.write( "\n" ); document.write( "See the lessons\r
\n" ); document.write( "\n" ); document.write( "    - Proof of the Heron's formula for the area of a triangle \r
\n" ); document.write( "\n" ); document.write( "    - One more proof of the Heron's formula for the area of a triangle\r
\n" ); document.write( "\n" ); document.write( "in this site.\r
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\n" ); document.write( "\n" ); document.write( "The rest is arithmetic.\r
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\n" ); document.write( "\n" ); document.write( "The previous solution is wrong.\r
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