document.write( "Question 1156648: In a circle, diameter is extended through B to an external point P. Tangent is drawn to point C on the
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Algebra.Com's Answer #779407 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "The tangent line (the tangent segment) is perpendicular to the radius, drawn to the tangent point.\r\n" );
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document.write( "So, you have rigth angle triangle with the hypotenuse 15+2 = 17 units and one leg of 15 units (the radius).\r\n" );
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document.write( "Then the other leg (which is the tangent segment) is\r\n" );
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document.write( "     =  =  = 8 units.\r\n" );
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document.write( "ANSWER.  The tangent segment PC is 8 units long.\r\n" );
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