document.write( "Question 78285: If the measures of the three angles of a triangle are x, 2x - 20, and 3x - 10, then what is this type of triangle? why? \n" ); document.write( "
Algebra.Com's Answer #56225 by checkley75(3666)![]() ![]() ![]() You can put this solution on YOUR website! X+(2X-20)+(3X-10)=180 \n" ); document.write( "6X-30=180 \n" ); document.write( "6X=180+30 \n" ); document.write( "6X=210 \n" ); document.write( "X=210/6 \n" ); document.write( "X=35 DEGREES. \n" ); document.write( "2*35-20=70-20=50 DEGREES. \n" ); document.write( "3*35-10=105-10=95 DEGREES. \n" ); document.write( "PROOF \n" ); document.write( "35+50+95=180 \n" ); document.write( "180=180 \n" ); document.write( "THIS IS AN OBTUSE TRIANGLE: A TRIANGLE WITH ONE ANGLE >90 DEGREES. \n" ); document.write( " \n" ); document.write( " |