Mathematics, 28.08.2019 05:10 alex7881
The angles of elevation of an airplane between two observation points, a and b, are 30 ° and 45 ° respectively. if the vertical height of the plane at the moment is 5 km, find the distance between a and b to the nearest tenth of a km.
Answers: 1
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The angles of elevation of an airplane between two observation points, a and b, are 30 ° and 45 ° re...
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