document.write( "Question 1062660: If angle A is (2c+2)°, angle B is (5c-1)°, and angle C is (c+7)° is the triangle acute, right or obtuse? \n" ); document.write( "

Algebra.Com's Answer #677617 by Fombitz(32388) $\"\"$ $\"About$

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So then,
\n" ); document.write( " $\"A%2BB%2BC=180\"$
\n" ); document.write( " $\"2c%2B2%2B5c-1%2Bc%2B7=180\"$
\n" ); document.write( " $\"8c%2B8=180\"$
\n" ); document.write( " $\"8c=172\"$
\n" ); document.write( " $\"c=172%2F8\"$
\n" ); document.write( " $\"c=43%2F2\"$
\n" ); document.write( "So,
\n" ); document.write( " $\"A=2%2843%2F2%29%2B2\"$
\n" ); document.write( " $\"A=43%2B2\"$
\n" ); document.write( " $\"A=45\"$
\n" ); document.write( "and
\n" ); document.write( " $\"B=5%2843%2F2%29-1\"$
\n" ); document.write( " $\"B=215%2F2-2%2F2\"$
\n" ); document.write( " $\"B=213%2F2\"$
\n" ); document.write( "and
\n" ); document.write( " $\"C=43%2F2%2B7\"$
\n" ); document.write( " $\"C=43%2F2%2B14%2F2\"$
\n" ); document.write( " $\"C=57%2F2\"$
\n" ); document.write( "Since,
\n" ); document.write( " $\"213%2F2%3E90\"$
\n" ); document.write( "the triangle is obtuse.
\n" ); document.write( " \n" ); document.write( "

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