IB MAI HL Geometry & Trigonometry Topic 3.1 Geometry of 3D Shapes (id: d88439bd8)

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]
A right cylinder has ht5 v7v ypg7*i0.u:trave .fwp;r,pjkeight bf0ep7(i4 kph l3xgl. hh mm and diameter xx mm. The volume of this cylinder is equ pbfix g7p.(e4hkll30al to $45mm^3$.


The total surface area, A, of the cylinder can be expressed as $A = \frac{\pi}{2}x^2 + \frac{k}{x}$.
1.Find the value of k.k=  
2.Find the value of x that makes the total surface area a minimum.x=  mm

参考答案:
空格1: 180  空格2: 3.86±3% 


本题详细解析:

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