document.write( "Question 1111462: A gardener needs to cultivate a triangular plot of land. One angle of the garden is 47,and two sides adjacent to the angle are 77 feet and 76 feet. What is the area of the plot of land. \n" ); document.write( "
Algebra.Com's Answer #726464 by Boreal(15235)\"\" \"About 
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find third side by using Law of Cosines
\n" ); document.write( "c^2=a^2+b^2-2abcos C=77^2+76^2-2(76)(77)cos 47
\n" ); document.write( "=11705-11704 * 0.682
\n" ); document.write( "=11705-7982.13
\n" ); document.write( "=3722.87
\n" ); document.write( "c=61.01, use 61
\n" ); document.write( "Heron's formula
\n" ); document.write( "A= sqrt (s*(s-a)(s-b)(s-c)), s= (1/2)(a+b+c)=107
\n" ); document.write( "A=sqrt (107*40*41*46)=2841 ft^2
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