Question

Rohan marked 7 points on a plane paper. Which of the following combinations result in a quadrilateral (all points need to be joined)?

• A. Three set of three collinear points
• B. One set of five collinear points
• C. One set of four collinear points and one set of three collinear points
• D. All point necessarily have to be collinear

Answer 1

Answer: (A), (B), (C)

One set of four collinear points and one set of three collinear points

All of the arrangements are shown below:


So, quadrilateral will be formed from all the three arrangements.