document.write( "Question 555570: If I have a 4 sided polygon and one side is 68 degrees and 100 degrees and a 90 degree angles, how do I find what a is? \n" ); document.write( "
Algebra.Com's Answer #361845 by mathstutor494(120)\"\" \"About 
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Sum of interior angles of 4 sided polygon = 360 degree\r
\n" ); document.write( "\n" ); document.write( "Hence fourth angle is = 360-100-90-68\r
\n" ); document.write( "\n" ); document.write( "102 Degree
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