Cylinder probability

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Raiyan Jamil
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Cylinder probability

Unread post by Raiyan Jamil » Fri Dec 05, 2014 7:57 pm

If a cylinder has a height of 10 cm and radius of 5 cm, then if it is tossed, then what is the probability that, it's plane round surface will fall facing the ground :?:
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Tasnood
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Re: Cylinder probability

Unread post by Tasnood » Wed Feb 07, 2018 9:02 pm

Total surface area of the cylinder=$2\pi r(r+h)$=$2\pi \times 5(5+10)=500\pi$
Area of the plane round surface=$2\pi r^2$=$2\pi 5^2$=$50\pi$

Probability=$\frac{500\pi}{50\pi}$=$10$

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