document.write( "Question 1194669: A bicycle race follows a triangular course. The three sides of the race are 7km, 24km and 25km. What is the approximate measure of the angle opposite to side 7 km? \n" ); document.write( "

Algebra.Com's Answer #826913 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "A bicycle race follows a triangular course.
\n" ); document.write( "The three sides of the race are 7km, 24km and 25km.
\n" ); document.write( "What is the approximate measure of the angle opposite to side 7 km?
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document.write( "Use the cosine rule\r\n" );
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document.write( "    cos(of the angle \"a\" opposite to side 7 km) =  = 0.96.\r\n" );
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document.write( "    Angle a = arccos(0.96) = 0.2838 radians = 16.26 degrees.    ANSWER\r\n" );
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