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A​ blimp, suspended in the air at a height of 600 ​feet, lies directly over a...

A​ blimp, suspended in the air at a height of 600 ​feet, lies directly over a line from a sports stadium to a planetarium. If the angle of depression from the blimp to the stadium is 31degrees° and from the blimp to the planetarium is 21degrees°​, find the distance between the sports stadium and the planetarium.

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