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Three distinct vertices are chosen at ra...

Three distinct vertices are chosen at random from the vertices of a given regular polygon of `(2n + 1)` sides Let all such choices are equally likely and the probability that the centre of the given polygon lies in the interior of the triangle determined by these three chosen random points is `5/14` Three vertices of the polygon are chosen at random. The probability that these vertices form an isosceles triangle is.

A

`1//3`

B

`3//7`

C

`3//28`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
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