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
aiswarya pradeep , 7 Years ago
Grade 12
