document.write( "Question 1094392: Find area of trapezoid whose one base is28.6cms one of non parellel side is 20.2cms with angle45 and other base angle is 60 \n" ); document.write( "

Algebra.Com's Answer #708964 by KMST(5328) $\"\"$ $\"About$

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The trapezoid would look like this:
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\n" ); document.write( "Its surface area will be an irrational number,
\n" ); document.write( "and its exact expression would not look pretty,
\n" ); document.write( "so I hope the expected answer is an approximate value,
\n" ); document.write( "calculated with at most a couple of decimal places.
\n" ); document.write( "I would start by drawing two right triangles.
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The legs of those triangles measure $\"x\"$ $\"cm\"$ and $\"y\"$ $\"cm\"$ .
\n" ); document.write( "For the right triangle on the left, we know that $\"sin%2845%5Eo%29=cos%2845%5Eo%29=sqrt%282%29%2F2=x%2F20.2\"$ .
\n" ); document.write( "For the right triangle on the right, we know that $\"tan%2860%5Eo%29=sqrt%283%29=x%2Fy\"$ .
\n" ); document.write( "I hope that you can go on from there.
\n" ); document.write( "I found $\"x=approximately\"$ $\"14.28356\"$ $\"cm\"$ , $\"x=approximately\"$ $\"8.26615\"$ $\"cm\"$ . \n" ); document.write( "

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