document.write( "Question 860018: A quadrilateral (Not Regular) is inscribed in a circle. One of the angles is 82°, find the angle that is opposite the given angle. need the answer and calculations to get the answer. \n" ); document.write( "
Algebra.Com's Answer #518098 by ben720(159)\"\" \"About 
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The opposite angle is 98° by the Opposite Angles of Cyclic Quadrilaterals Conjecture.
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\n" ); document.write( "If you don't know what the Opposite Angles of Cyclic Quadrilaterals Conjecture is, it is that the opposite angles of cyclic quadrilaterals are supplementary.
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\n" ); document.write( "To prove this, take a circle. The two opposite angles in the quadrilateral are the inscribed angles of two arcs. Those arcs comprise the entire circle.
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\n" ); document.write( "Therefore, as the measure of an inscribed angle is half that of the arc it defines, the two angles add up to 180°.
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\n" ); document.write( "This conjecture has a weird proof; if you would like to have more clarification, feel free to email be at benfasigal AT gmail DOT com
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