document.write( "Question 1025094: A triangular parcel of land with points M,K,L was to be fenced.No data for the lengths of sides MK and KL are available as shown in the figure below. (the link-the picture.) ---> https://www.pinterest.com/pin/467741111280793052/\r
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document.write( "(if you cannot click the illustration/picture,pleae copy+paste it.thanks~)
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document.write( "please I really need help. :) \n" );
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Algebra.Com's Answer #640395 by Theo(13342)![]() ![]() You can put this solution on YOUR website! not sure what they are asking as the picture doesn't show that. \n" ); document.write( "what i see, however, indicates that you would use the law of sines to find the lengths of the corresponding sides.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "your triangle is MKL\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you are given that:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "angle M is 83 degrees. \n" ); document.write( "angle K is 52 degrees\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "since the sum of the angles of a triangle is equal to 180 degrees, then you can determine that angle L is equal to 180 - 84 - 52 = 45 degrees.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you are given that side ML is equal to 150.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you would use the law of sines to determine the length of the other sides.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the law of sines says that the sine of the angle divided by its opposite side is the same for all angles and sides of the triangle.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "this means that:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "sine of angle M / KL is equal to sine of angle K / ML is equal to sine of angle L / MK\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you know that the opposite side to angle K is side ML.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you have determined all the angles.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "from that, you get the following equations.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "sine(M) / KL = sine(K) / 150 = sine(L) / MK\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "replace the angles with their measures and you get:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "sine(52) / KL = sine(84) / 150 = sine(45) / MK\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "solve each equation separately.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "start with:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "sine(52) / KL = sine(84) / 150.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "solve for KL to get KL = (sine(52) * 150) / sine(84).\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you will get KL = 119.09\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "continue with:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "sine(83) / 150 = sine(45) / MK\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "solve for MK to get MK = (sine(45) * 150) / sine(83)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you will get MK = 106.87\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you now have the length of all the sides.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the perimeter of the triangle is the sum of the lengths.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the length are 150 + 119.09 + 106.87\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the perimeter is therefore equal to 375.96.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |