How many different triangles can be formed ?
Capgemini aptitude question with a worked answer. Free to practise - no sign-up.
How many different triangles can be formed ? Statement 1. There are 16 coplanar, straight lines in
all. Statement 2. No two lines are parallel.
Show answer & explanation
Answer: A. A) using 1st Statement only
Although it is known that none of the lines are parallel to each other, there might be the case wherein
all the lines have exactly one point of
intersection, or eight lines with one point and the other eight with another point of Intersection. Unless
something about the relative arrangement
of these lines is known, one cannot arrive at definite answer.