IB MAI HL Geometry & Trigonometry Topic 3.1 Geometry of 3D Shapes (id: 82358c18f

本题目来源于试卷: IB MAI HL Geometry & Trigonometry Topic 3.1 Geometry of 3D Shapes，类别为 IB数学

[填空题]
John is building furniture using cylindrical logs of lengtq;dul 83wrb gpb0bb(.6 3tmt uh 1.81.8 m bgar9vg4bp)k/esq 3 : e +eg7tand radius 9.29.2 cm. A wedge is cut from one log g7a9/)kbqg+e :ebp tegv4r3s and the cross-section of this log is illustrated in the following diagram.

1.Find the length of the wedge arc, ABC.  cm
2.Find the area of the empty sector, OABC.  $cm^2$
3.Find the volume of each log.  $cm^3$

参考答案:
空格1: 16.1±3%  空格2: 73.9±3%  空格3: 34600±3% 


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