SOLUTION: Anu chooses a diagonal from a regular 8 sided polygon. Anitha chooses another diagonal from the same ploygon. What is the probability that they choose 2 diagonals of the same lengt

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Question 157691: Anu chooses a diagonal from a regular 8 sided polygon. Anitha chooses another diagonal from the same ploygon. What is the probability that they choose 2 diagonals of the same length?
Could u solve this, Please?

Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!
An 8 sided polygon is an octagon with 4 diagonal sides.
Remember: Probability=no. of ways it'll occur/total no. of possible outcome ------>1
So if Anu chose 1 diagonal, the probability Anitha will land on that diag. is:
1%2F4 or 25% ----> see 1 above.---------> FINAL ANSWER
If Anu chose 2 sides, then the probability that Anitha will land on those sides chosen by Anu: 2%2F4=1%2F2 or 50%. ----> see 1 above.
.
Now if it's SOLID Octagon, it's different:
diagonals=%28sides%2F2%29%28sides-3%29=%288%2F2%29%288-3%29=4%2A5=20diag.
see www.worselyshool.net/science/files/polygonintro
Then: 1%2F20 = 0.05%2A100=5%, ANSWER
Thank you,
Jojo