document.write( "Question 1155635: In the triangle, suppose that m < R = (x+9)°, m < S = (7x+3)°, and m < T = (4x)°. Find the degree measure of each angle in the triangle. \n" ); document.write( "

Algebra.Com's Answer #778252 by ikleyn(52908) $\"\"$ $\"About$

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document.write( "The sum of interior angles of ANY triangle is 180°.  Therefore,\r\n" );
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document.write( "    (x+9) + (7x+3) + 4x = 180   degrees,\r\n" );
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document.write( "     12x  + 12          = 180\r\n" );
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document.write( "     12x                = 180 - 12 = 168\r\n" );
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document.write( "       x                           = 168/12 = 14.\r\n" );
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document.write( "ANSWER.  m < R = 12+ 9 = 21 degrees;  m < S = 7*12+3 = 87 degrees;  m < T = 4*12 = 48 dehrees.\r\n" );
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document.write( "    Make blank space separator before and after the symbol  \" < \"  - otherwise, your formula will be UNREADABLE.\r\n" );
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document.write( "    Wright the formulas related to angles as you see them in my post.\r\n" );
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