## Cylinder probability

- Raiyan Jamil
**Posts:**138**Joined:**Fri Mar 29, 2013 3:49 pm

### Cylinder probability

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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### Re: Cylinder probability

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

Area of the plane round surface=$2\pi r^2$=$2\pi 5^2$=$50\pi$

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