How do you draw four noncollinear points?

Answer 1

-- The four corners of a square are non-collinear.

-- The four corners of a rectangle are non-collinear.

-- The four vertices of any rhombus, parallelogram, or quadrilateral are non-collinear.

-- Any four vertices of any polygon with more than 3 sides are non-collinear.

-- The three vertices of any triangle are non-collinear, and they stay that way

when you add any other point on the same piece of paper.

-- Any four points on any circle, ellipse, parabola, or hyperbola are non-collinear.

-- If at least one point is on a different floor of the house from the other three,

then the four points are non-collinear.

-- Make three dots on a piece of paper. Cover them up. Walk away for a few

minutes. Come back. Make another dot on the paper. Uncover the first three.

We're almost positive that the four dots are non-collinear.