Question

Write one example each of a'' sure event and impossible event 

2/3+54/8

#LP: A tent is in the shape of a cylinder curmounted by a conical top. If the height and diameter of the cylindrical part are 2.1 m and 4 m respectively, and the slant height of the top is 2.8 m, find the area of the canvas used for making the tent. Also, find the cost of the canvas of the tent at the rate of 500 per m². (Note that the base of the tent will not be

covered with canvas)

[CBSE 2016

= \frac{(7 + 3\sqrt{5})^2}{49 - 45} = \frac{49 + 45 + 42\sqrt{5}}{4} = \frac{94 + 42\sqrt{5}}{4} = \mathbf{\frac{47 + 21\sqrt{5}}{2}}

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