IB MAI HL Geometry & Trigonometry Topic 3.2 Trigonometry (id: d0b572559)

本题目来源于试卷: IB MAI HL Geometry & Trigonometry Topic 3.2 Trigonometry，类别为 IB数学

[填空题]
Daniela (D) stands nz6 jk kis p;.fibv5)j/ear the window on the second floor ofojc,0:.ph4s w tbawd 6 the six-story apartment building and can see Andrea (A), who is 14 m from the base of the building. Tp .obdh4 t0, :swcj6wahe angle of depression from Daniela to Andrea is $20^{\circ}$.


1.Calculate the distance from Daniela to Andrea, AD.  m
Clara (C) is standing at the window of the sixth floor, three times higher from the ground than Daniela.
2.Calculate the angle of depression from C to A.  $^{\circ}$

参考答案:
空格1: 14.9±3%  空格2: 47.5±3% 


本题详细解析:

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