document.write( "Question 1149059: A 2.2m by 4.6m ramp is constructed in such a way that the incline of the shorter edge to the horizontal is 30 degrees. Calculate the angle between a diagonal of the ramp and the horizontal. \n" ); document.write( "

Algebra.Com's Answer #770384 by ikleyn(52909) $\"\"$ $\"About$

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document.write( "First, the height of the ramp is half of its shorter edge, i.e. 2.2/2 = 1.1 m.\r\n" );
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document.write( "Second, the length of the diagonal of the ramp is   = .\r\n" );
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document.write( "Third,  \r\n" );
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document.write( "    sin(a) =  = 0.216,     (1)\r\n" );
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document.write( "where \"a\" is the angle under the question.\r\n" );
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document.write( "Now use your calculator to find \"a\" from equation (1), your answer.\r\n" );
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