document.write( "Question 1197178: Find the height, in cm of the trapezoid ABCD; AE = 60
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Algebra.Com's Answer #830334 by ikleyn(52781)\"\" \"About 
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document.write( "(1)  Triangles ACD and BCF are similar. From similarity, you can find the length of CF and BF.\r\n" );
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document.write( "     So, I will assume that you just found them and know them.\r\n" );
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document.write( "(2)  The area of the right-angled triangle ACD is  \"%281%2F2%29%2A60%2A144\" = 4320.\r\n" );
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document.write( "     You can find its height H drawn from vertex C on side AD  \r\n" );
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document.write( "         area 4320 = \"%281%2F2%29%2AAD%2AH\",  H = \"%282%2A4320%29%2F156\" = \r\n" );
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document.write( "(3)  Since you just know CF and BF (see n.1 above),\r\n" );
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document.write( "     you can find the area of the right-angled triangle BCF, \r\n" );
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document.write( "     and after that you can find the altitude h of this triangle drawn from point C to its side BF.\r\n" );
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document.write( "(4)  After that, the height of the trapezoid ABCD is the sum (H + h).\r\n" );
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\n" ); document.write( "\n" ); document.write( "Comment from student : Dear Ms.Ikleyn, I have figured it out, and the answer is a part of my multiple choices for homework!! I got: 59 8/13\r
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\n" ); document.write( "\n" ); document.write( "My response :   I am glad to hear it from you  ( ! )\r
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