document.write( "Question 957544: (c) (i) Find ∠BCA in the triangle , giving your answer
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document.write( "correct to the nearest degree
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document.write( "ab = 28.8cm
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document.write( "bc = 22.7cm
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document.write( "ca = 38.4cm\r
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document.write( "Find the area of the triangle ABC in part (c)(i), giving your
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document.write( "answer correct to the nearest square cm\r
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Algebra.Com's Answer #585149 by satyareddy(3)![]() ![]() ![]() You can put this solution on YOUR website! by using heron's formula \n" ); document.write( "area = sq rt (s-a)(s-b)(s-c) \n" ); document.write( "where s=(a+b+c)/2 \n" ); document.write( "s=28.8+22.7+38.4=89.9/2=44.95 \n" ); document.write( "area=sq rt (44.95-28.8)(44.95-22.7)(44.95-38.4) \n" ); document.write( "= sq rt(16.15)(22.25)(6.55)=sq rt(2353.66)=48.51 sq cm \n" ); document.write( " \n" ); document.write( " |