document.write( "Question 1080010: Chord AB has the same length as the radius of the circle in which it is drawn. Endpoints of a chord AB are points of tangency of two lines to this circle. These two tangents intersect each other at point C. What is the measure of angle ACB? \n" ); document.write( "

Algebra.Com's Answer #694257 by ikleyn(52879) $\"\"$ $\"About$

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document.write( "HINT #1.  The chord and the radii make an equilateral triangle with interior angles of 60°.\r\n" );
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document.write( "Hint #2.  The tangent lines at the tangent points are perpendicular to the radii.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Based on these hints, can you complete the solution on your own ?\r
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\n" ); document.write( "\n" ); document.write( "Answer. 120°.\r
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