document.write( "Question 888875: if angle A = 56degrees 40' and b = 22ft., find c \n" ); document.write( "
Algebra.Com's Answer #537749 by Theo(13342)\"\" \"About 
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this is presumably a right triangle with angle A being equal to 56 degrees 40 minutes, angle B being equal to 34 degrees 20 minutes, and angle C being equal to 90 degrees.\r
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\n" ); document.write( "\n" ); document.write( "there are 60 minutes in a degree and there are 60 seconds in a minute.\r
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\n" ); document.write( "\n" ); document.write( "56 degrees 40 minutes is equal to 56 degrees + 40/60 degrees which is equal to 56 + 2/3 degrees.\r
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\n" ); document.write( "\n" ); document.write( "side c is the hypotenuse of this triangle.
\n" ); document.write( "side b is opposite angle B which is the side that is adjacent to angle A.\r
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\n" ); document.write( "\n" ); document.write( "cosine of A is equal to adjacent / hypotenuse which becomes:\r
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\n" ); document.write( "\n" ); document.write( "cosine of 56 + 2/3 degrees = 22 / c\r
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\n" ); document.write( "\n" ); document.write( "solve for c to get:\r
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\n" ); document.write( "\n" ); document.write( "c = 22 divided by cosine of 56 + 2/3 degrees.\r
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\n" ); document.write( "\n" ); document.write( "use your calculator to get c = 40.0357426\r
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\n" ); document.write( "\n" ); document.write( "that's your answer.\r
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