document.write( "Question 1140344: Prove: If two circles are tangent internally at point P and chord PA of the larger circle intersects the smaller circle at B, then the measure of arc PA is equal to the measure of arc PB. \n" ); document.write( "
Algebra.Com's Answer #760847 by ikleyn(52788)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "The measure of the angle between a chord and a tangent line to a circle at the endpoint of the chord
\n" ); document.write( "is half the measure of the arc stretched by the chord. \r
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\n" ); document.write( "\n" ); document.write( "        For this statement, see the lesson\r
\n" ); document.write( "\n" ); document.write( "            - The angle between a chord and a tangent line to a circle, \r
\n" ); document.write( "\n" ); document.write( "        in this site.\r
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\n" ); document.write( "\n" ); document.write( "Since the angle between the tangent line and the chord is the same for both circles,\r
\n" ); document.write( "\n" ); document.write( "the two arcs have equal angular measures.\r
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\n" ); document.write( "\n" ); document.write( "There is this free of charge online textbook on Geometry\r
\n" ); document.write( "\n" ); document.write( "    GEOMETRY - YOUR ONLINE TEXTBOOK \r
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\n" ); document.write( "\n" ); document.write( "The referred lesson is the part of this online textbook under the topic  \"Properties of circles, inscribed angles, chords, secants and tangents \".\r
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\n" ); document.write( "\n" ); document.write( "Save the link to this online textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in GEOMETRY
\n" ); document.write( "https://www.algebra.com/algebra/homework/Triangles/GEOMETRY-your-online-textbook.lesson\r
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\n" ); document.write( "\n" ); document.write( "to your archive and use it when it is needed.\r
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