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Let V be the set of vertices of a regular polygon with twenty sides. Three distinct vertices are chosen at random from V . Then, the probability that the chosen triplet are the vertices of a right angled triangle is (A) 7 /19 (B) 3 /19 (C) 3 /38 (D) 1 /38

Let V be the set of vertices of a regular polygon with twenty sides. Three distinct vertices are chosen at random from V . Then, the probability that the chosen triplet are the vertices of a right angled triangle is (A) 7 /19 (B) 3 /19 (C) 3 /38 (D) 1 /38 

Grade:12

1 Answers

Vikas TU
14149 Points
2 years ago
Dear student 
Question is not clear 
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