document.write( "Question 1200430: A ladder is placed against a vertical wall with
\n" ); document.write( "its foot on horizontal ground. If the angle of
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\n" ); document.write( "the ladder and the wall is 4.7m, calculate
\n" ); document.write( "the length of the ladder correct to 1 d.p.. \n" ); document.write( "

Algebra.Com's Answer #834566 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "A ladder is placed against a vertical wall with its foot on horizontal ground.
\n" ); document.write( "If the angle of inclination of the ladder to the horizontal is 39°
\n" ); document.write( "and the distance between the foot of the ladder and the wall is 4.7m,
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document.write( "Make a sketch if you need it.\r\n" );
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document.write( "You have a right angled triangle.\r\n" );
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document.write( "One its leg  \"a\"  is  4.7 m.\r\n" );
document.write( "The adjacent angle  is 39°.\r\n" );
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document.write( "They want you calculate the length of the hypotenuse \"c\".\r\n" );
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document.write( "Write \r\n" );
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document.write( "    cos(39°) = ,\r\n" );
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document.write( "based on the definition of cosine. \r\n" );
document.write( "From this equation\r\n" );
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document.write( "    c = .\r\n" );
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document.write( "Use your calculator and complete the assignment on your own.\r\n" );
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