document.write( "Question 900606: A hiker sights the top of a 2228m high mountain at an angle of elevation of 12. After walking towards the mountain he sights it at an angle of elevation of 22. How many kilometres did the hiker walk?\r
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Algebra.Com's Answer #546073 by Edwin McCravy(20054)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "We are trying to find AB.\r\n" );
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document.write( "First we find AC using triangle ACD\r\n" );
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document.write( "\"tan%28%2212%B0%22%29=2228%2FAC\"\r\n" );
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document.write( "\"AC%2Atan%28%2212%B0%22%29=2228\"\r\n" );
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document.write( "\"AC=2228%2Ftan%28%2212%B0%22%29\"\r\n" );
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document.write( "\"AC=10481.91588\"\r\n" );
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document.write( "Next we find BC using triangle BCD\r\n" );
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document.write( "\"tan%28%2222%B0%22%29=2228%2FBC\"\r\n" );
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document.write( "\"BC%2Atan%28%2222%B0%22%29=2228\"\r\n" );
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document.write( "\"BC=2228%2Ftan%28%2222%B0%22%29\"\r\n" );
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document.write( "\"BC=5514.493509\"\r\n" );
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document.write( "\"AB=AC-BC=10481.91588-5514.493509=4967.422375\"\r\n" );
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document.write( "Answer rounded to nearest meter = 4967 m.\r\n" );
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document.write( "Edwin
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