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Mathematics 9 Online
OpenStudy (anonymous):

A 12 foot flagpole casts a 10 foot shadow. At the same time, a nearby building casts a 48 foot shadow. How tall is the building?

OpenStudy (campbell_st):

use the ratios of corresponding sides. Let h be the height of the building. then \[\frac{12}{10} = \frac{h}{48}\] just solve for h

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