Question

Which of the following statements are incorrect?

• A. Three collinear points form a triangle.
• B. No three vertices of a quadrilateral are collinear.
• C. Any two vertices of a quadrilateral are non - collinear.
• D. Four non - collinear points form a quadrilateral.

Answer 1

Answer: (A), (C)

The correct options are
A Three collinear points form a triangle.
C Any two vertices of a quadrilateral are non - collinear.

1. Three non - collinear points form a triangle.
2. In a quadrilateral, no three vertices are collinear, i.e. they don't lie on the same line but any two vertices are collinear.