Altitude The angles of elevation to an airplane fromtwo points A and B on level ground are 55° and 72°,respectively. The points A and B are 2.2 miles apart,and the airplane is east of both points in the samevertical plane.(a) Draw a diagram that represents the problem. Showthe known quantities on the diagram.(b) Find the distance between the plane and point B.(c) Find the altitude of the plane.(d) Find the distance the plane must travel before it isdirectly above point A.

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Chapter2: Vectors
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Altitude The angles of elevation to an airplane from
two points A and B on level ground are 55° and 72°,
respectively. The points A and B are 2.2 miles apart,
and the airplane is east of both points in the same
vertical plane.
(a) Draw a diagram that represents the problem. Show
the known quantities on the diagram.
(b) Find the distance between the plane and point B.
(c) Find the altitude of the plane.
(d) Find the distance the plane must travel before it is
directly above point A.

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