• # question_answer An isosceles triangle is chosen from all the triangles whose vertices are chosen from the vertices of a cube. If the probability that the chosen triangle is equilateral is p, then find the value of 840 p. A) 210 B) 410 C) 230 D) 240

 Number of equilateral triangles = 8 Number of isosceles triangles = 32 $\therefore$      $p=\frac{1}{4}$ $\therefore$      $840p=210$