document.write( "Question 1205123: A water tower 30 m tall is located at the top of a hill. From a distance of 120 m down the hill it is observed that the angled formed between the top and base of the tower is 8°. Find the angle of inclination of the hill. \n" ); document.write( "
Algebra.Com's Answer #841771 by Edwin McCravy(20054)\"\" \"About 
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document.write( "The solution above is incorrect. \r\n" );
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document.write( "Let the tower be CT. It's a very steep hill.\r\n" );
document.write( "The hill is AC. The observer is down at A.\r\n" );
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document.write( "We use the law of sines on triangle ACT\r\n" );
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document.write( "\"120%5E%22%22%2Fsin%28theta%5E%22%22%29\"\"%22%22=%22%22\"\"30%5E%22%22%2Fsin%288%5Eo%29\" \r\n" );
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document.write( "\"30sin%28theta%5E%22%22%29\"\"%22%22=%22%22\"\"120sin%288%5Eo%29\"\r\n" );
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document.write( "\"sin%28theta%5E%22%22%29\"\"%22%22=%22%22\"\"120sin%288%5Eo%29%2F30%5E%22%22\"\r\n" );
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document.write( "\"sin%28theta%5E%22%22%29\"\"%22%22=%22%22\"\"4sin%288%5Eo%29\"\r\n" );
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document.write( "\"sin%28theta%5E%22%22%29\"\"%22%22=%22%22\"\"0.5566924038\"\r\n" );
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document.write( "This is the ambiguous case ASS, but since we know θ is acute,\r\n" );
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document.write( "\"theta\"\"%22%22=%22%22\"\"33.82736264%5Eo\"\r\n" );
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document.write( "Angle θ and angle BAT are complementary, so\r\n" );
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document.write( "Angle BAT = \"90%5Eo\"\"%22%22-%22%22\"\"33.82736264%5Eo\"\"%22%22=%22%22\"\"56.17263736%5Eo\"\r\n" );
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document.write( "So the angle of inclination of the hill is angle BAC\r\n" );
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document.write( "Angle BAC = Angle BAT - 8o = 56.17263736o - 8o = 48.17263736o.\r\n" );
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document.write( "Edwin
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