IB MAI HL Geometry & Trigonometry Topic 3.2 Trigonometry (id: 8eff417a0)

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]
Two drones are being flown in aa+k bi85 4jpfe park. Drone A starts at poi z5zi )8gjejmmb9 k7.snt P and travels towards point Q in a straight line on a true beari 9gjiz8 7ks. jz5mb)meng of $115^{\circ}$ at a speed of $2.5ms^{-1}$. The distance from P to Q is 800m.
Drone B starts at point Q and travels towards point R in a straight line on a true bearing of $215^{\circ}$ at a speed of $7.5ms^{-1}$ .
These two paths are shown on the diagram below.



1.Find the acute angle $\mathrm{P}\hat{\mathrm{Q}}\mathrm{R}$.  $^{\circ}$
2.Find the distance between Drone A and Drone B after 4 minutes, rounding your answer to the nearest metre.  m

参考答案:
空格1: 80  空格2: 1776±3% 


本题详细解析:

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