The sum of the exterior angles of a triangle needs to equal 360 degrees.
Here is the formula for solving this:
2 π<span> r</span>²<span> + 2 </span>π<span> r h.
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Please refrain from triple posting
Answer: 
Step-by-step explanation:
The probability distribution function for uniform distribution in interval [a,b] is given by :_

Given : Mr. Warren Buffet and Mr. Zhao Danyang agree to meet at a specified place between 12 pm and 1 pm.
Since 1 pm comes after 12 pm, and in 24 hours system we call it as 13 pm.
If each person arrives between 12 pm and 1 pm at random with uniform probability, then the uniform distribution function for this will be :_

Hence. the distribution function for the length of the time that the first to arrive has to wait for the other will be :-

To find the mean, add all of the values and then divide by how many numbers
to get the median, you have to write out every number, how many ever times it appears and cross them out from the side to get to the middle number. Essentially the median is the middle number. if there are 2 middle numbers, add together and divide by 2