document.write( "Question 353559: If a, b and c are the sides of a triangle, and a^2 + b^2 + c^2 = bc + ca + ab, then the triangle is\r
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document.write( "a. equilateral b. isosceles c. right-angled d. obtuse-angled \n" );
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Algebra.Com's Answer #252725 by edjones(8007)![]() ![]() You can put this solution on YOUR website! a. \n" ); document.write( "Let all the side be 3 \n" ); document.write( "a^2 + b^2 + c^2=9+9+9 \n" ); document.write( " bc + ca + ab=9+9+9 \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |