document.write( "Question 697522: Given circle T; and a point P outside of T;, 2 lines l1 and l2 are drawn such that both pass through P. l1 intersects T; at A and B, and l2 intersects T; at C and D, with C between D and P. If PA=44,PB=294 and PC=56, what is PD? \n" ); document.write( "
Algebra.Com's Answer #430096 by Edwin McCravy(20060)\"\" \"About 
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document.write( "PA=44,PB=294 and PC=56, what is PD?\r\n" );
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document.write( "Draw BC and AD\r\n" );
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document.write( "Angles B and D are inscribed angles intersepting\r\n" );
document.write( "the same arc AC so they are equal.\r\n" );
document.write( "Angle P is in both triangles. Therefore triangles \r\n" );
document.write( "PAD and PCB are similar, therefore\r\n" );
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document.write( "\"PA%2F%28PC%29\" = \"PD%2F%28PB%29\"\r\n" );
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document.write( "Cross-multiplying:\r\n" );
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document.write( "PA×PB = PC×PD\r\n" );
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document.write( "44×294 = 56×PD\r\n" );
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document.write( "12936 = 56×PD\r\n" );
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document.write( "\"12936%2F56\" = PD\r\n" );
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document.write( "231 = PD\r\n" );
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document.write( "So PD = 231\r\n" );
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document.write( "Edwin
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