document.write( "Question 1166904: Calculate the length of a tangent to the circle: x^2+y^2+8x−2y−8=0 at its point of tangency from the point P(2,4) which is off the circle. Make sure to show your work. \n" ); document.write( "
Algebra.Com's Answer #791483 by Alan3354(69443)\"\" \"About 
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Calculate the length of a tangent to the circle: x^2+y^2+8x−2y−8=0 at its point of tangency from the point P(2,4) which is off the circle.
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\n" ); document.write( "Find the center of the circle O (h,k).
\n" ); document.write( "Find the distance OP.
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\n" ); document.write( "Call the Tangent points P1 and P2.
\n" ); document.write( "bb later to finish.\r
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