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12-06-2018
Mathematics

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A Forest ranger in a 90-foot observation tower sees a fire. The angle of depression to the fire is 7 degree. A. What is the horizontal distance between the tower and the fire? Round to the nearest foot.

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musiclover10045 musiclover10045

12-06-2018

Tan(angle) = opposite leg / adjacent leg

Tan(7) = X / 90

X = tan(7) * 90

X = 11 feet

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