How tall is a tower if it casts a shadow 65 ft. long at the same time that a building 160 ft. tall casts a shadow 130 ft. long? I tried using the hypotenuse formula but didn't get the right answer. Help.
How do I find how tall a building is?
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geometry
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2You need to use similar triangles. – 2012-06-15
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0$\frac{160}{130} = \frac{x}{65}$ so $x = 80$. "You need to use similar triangles." – 2012-06-15
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0Thank you very much, I was using the wrong relationships for the proportion. – 2012-06-15
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4Of course, the canonical way of finding the height of a building is to [offer a barometer to the building manager](http://www.snopes.com/college/exam/barometer.asp). – 2012-06-15