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Mathematics 9 Online
OpenStudy (anonymous):

A flagpole stands on a top of a building. The angle of elevation of the foot of the pole 30 m from the foot the building is 60° and 80 m farther, the top of the pole has an elevation of 30°. How high is the pole? Give the answer in exact form.

OpenStudy (anonymous):

I thought about using a special right triangle 30-60-90, but my diagram does not make sens.

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