document.write( "Question 551322: In triangle XYZ, XY is congruent to YZ. If the measure of angle X is 52, find the measure of angle Y. \n" ); document.write( "
Algebra.Com's Answer #359632 by Earlsdon(6294)\"\" \"About 
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Triangle XYZ must be an isosceles triangle from the description.
\n" ); document.write( "Angle X = angle Z because the base angles of an isosceles triangle are congruent.
\n" ); document.write( "The third angle, angle Y, is 180-X-Z. The sum of the angles in any plane triangle is 180 degrees.
\n" ); document.write( "Angle Y = 180-52-52 = 76 degrees.
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