document.write( "Question 575698: In a right angled triangle two of the angles are in the ratio 6:13.find the third angle. \n" ); document.write( "
Algebra.Com's Answer #369590 by JBarnum(2146)\"\" \"About 
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angle a b c
\n" ); document.write( "one angle =90 degrees
\n" ); document.write( "the other two added together =90 degrees
\n" ); document.write( "all 3 angles added together =180 degrees
\n" ); document.write( "no single angle can be more than 90 degrees
\n" ); document.write( "angle a to angle b is 6:13 or 6x:13x
\n" ); document.write( "a=6x
\n" ); document.write( "b=13x
\n" ); document.write( "c is unknown (third angle)
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\n" ); document.write( "by using the above facts
\n" ); document.write( ".
\n" ); document.write( "a cant possibly be the 90 degree angle beacause then b would be greater than 90 degrees
\n" ); document.write( "just to prove it
\n" ); document.write( "if a=90 then 6x=90 and x=15
\n" ); document.write( "and then b=13x=13(15)=195 and thats biggere then the entire triangle
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\n" ); document.write( "so if b=90 degrees
\n" ); document.write( "13x=90
\n" ); document.write( "x=6.92
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\n" ); document.write( "a=6(6.92)=41.5385
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\n" ); document.write( "c=180-90-41.5385=48.4615
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\n" ); document.write( "but if c=90 degrees then that would mean
\n" ); document.write( "6x+13x=90
\n" ); document.write( "19x=90
\n" ); document.write( "x=4.7368
\n" ); document.write( "a=6x=6(4.7368)=28.4211
\n" ); document.write( "b=13x=13(4.7368)=61.5789
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\n" ); document.write( "so there are 2 possible answers either c=48.4615 or 90 degrees
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