IB MAI HL Geometry & Trigonometry Topic 3.2 Trigonometry (id: 1d5830bae)

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]
A windscreen wiper blade has a eghb +:iv(2kalength of 0.45 m.sftc 31oywles8;ig09 5qhk ;i When it's raining and the blade is in motion, it moves through an arc angle of 8kscw i;e qgt0o15 9il;yh3sf $\dfrac {3\pi} 4$ radians.


1.Determine the area of the windscreen wiped by the blade.  $m^2$
2.Determine the arc length travelled by the outer edge of the blade.  m

参考答案:
空格1: 0.239±3%  空格2: 1.06±3% 


本题详细解析:

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