document.write( "Question 1135553: In ∆ABC, b=5 and c=4. The area of the triangle is 15√7/4. To the nearest tenth,
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Algebra.Com's Answer #753312 by ikleyn(52925) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "For any triangle, its area is half the product of the lengths of any its two sides and the sine of the angle between them.\r\n" );
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document.write( "In your case, the Area = .\r\n" );
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document.write( "Substituting your data, you have  = .\r\n" );
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document.write( "From here,  sin(A) =  = 0.992167.\r\n" );
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document.write( "Then  for angle A you have TWO possible values  m ( < A ) = 82.82°  and  m ( < A) = 180° - 82.82° = 97.08°.    ANSWER \r\n" );
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