document.write( "Question 146185: How do I know what kind of triangle it will form from it's length measurements? Acute, Right, or Obtuse?
\n" ); document.write( "1) 4cm, 4cm, 4cm
\n" ); document.write( "2) 3cm, 4cm, 5cm
\n" ); document.write( "3) 5cm, 11cm, 12cm
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Algebra.Com's Answer #106764 by nabla(475)\"\" \"About 
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1. All sides are equal, thus by theorem all angles are equal. So 3s=180, s=60. This is acute.\r
\n" ); document.write( "\n" ); document.write( "2. Look at the Pythagorean Theorem. a^2+b^2=c^2. Do these sides fit? 3^2+4^2=9+16=25.. sqrt(25)=5, yes. Thus it must be a right triangle.\r
\n" ); document.write( "\n" ); document.write( "3. The inequality relation \"a%5E2%2Bb%5E2%3Cc%5E2\" must be met if this is an obtuse triangle.\r
\n" ); document.write( "\n" ); document.write( "5^2+11^2=25+121=136<144. Thus it must be an obtuse triangle.
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