document.write( "Question 814752: The sides of an isosceles triangle are 27, 27, and 12yd long. What is the area of the triangle?
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document.write( "Do not round any intermediate computations, and round your answer to the nearest tenth. i need help on how to solve this step by step \n" );
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Algebra.Com's Answer #490549 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! The sides of an isosceles triangle are 27, 27, and 12yd long. \n" ); document.write( " What is the area of the triangle? \n" ); document.write( ": \n" ); document.write( "We need to find the height of the triangle to find the area \n" ); document.write( ": \n" ); document.write( "Draw the triangle, with the base as 12 yd, draw the height, a perpendicular line from the center of the base, bisecting the top angle. \n" ); document.write( "Note that you have two right triangles, \n" ); document.write( "one leg is half the base, 6 \n" ); document.write( "one leg is the height h \n" ); document.write( "one side is the hypotenuse, 27 \n" ); document.write( "Using pythag \n" ); document.write( "6^2 + h^2 = 27^2 \n" ); document.write( "36 + h^2 = 729 \n" ); document.write( "h^2 = 729 - 36 \n" ); document.write( "h^2 = 693 \n" ); document.write( "h = \n" ); document.write( ": \n" ); document.write( "A = \n" ); document.write( "A = \n" ); document.write( "Using your calc \n" ); document.write( "A = 157.949 \n" ); document.write( "A = 157.9 sq/yds \n" ); document.write( " |