IB MAI HL Geometry & Trigonometry Topic 3.2 Trigonometry (id: 2092dd52f)

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]
The quadrilateral ABCD is shown below, where 6vf*,e6*zjk9gi wv s* ptryluz :/ou; AB = 56m, ADw:j5cvc*cyjx3zl7o 9 =122 m, CD =40 m, and the anglv:357yc9ccxlzj jw* oes $\mathrm{B}\hat{\mathrm{A}}\mathrm{D}$ and $\mathrm{A}\hat{\mathrm{D}}\mathrm{C}$ are $68^{\circ}$ and $80^{\circ}$ respectively.


1.Find the length of line AC.  m
2.Find the area of triangle ACD.  $m^2$
3.Find the angle $\mathrm{D}\hat{\mathrm{A}}\mathrm{C}$. Give your answer in degrees correct to one
decimal place.  $^{\circ}$
4.Find the shortest distance between point B and the line AC.  m
5.Find the length of the perimeter of triangle ABC.  m

参考答案:
空格1: 122±3%  空格2: 2400±3%  空格3: 18.9±3%  空格4: 42.3±3%  空格5: 273±3% 


本题详细解析:

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