document.write( "Question 280546: I have a four sided polygon with the following dimensions. The base is 10 feet, the left vertical height is 8 feet and the right vertical height is 10 feet. I need to know the interior angles in the top two corners. The bottom corners are 90 degrees.\r
\n" ); document.write( "\n" ); document.write( "This is to cut lumber as joists to fit this polygon (a lean too on my home.
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Algebra.Com's Answer #203919 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
if you draw a line parallel to the base from the top of the left vertical post of 8 feet to the opposite side at the 8 ft mark you form a right triangle with base 10 and vertical leg of 2 (10-8=2)
\n" ); document.write( "the roof will be
\n" ); document.write( "2^2+10^2=c^2
\n" ); document.write( "4+100=c^2
\n" ); document.write( "sqrt(104)=c
\n" ); document.write( "the top angle can be found using the 10 and the 2 sides of the right triangle and the corresponding trig function.
\n" ); document.write( "the other interior angle will be 180-that angle.
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