How do you draw a triangle with an area of 6cm2?

Well, it helps immensely to know the formula for the area of a triangle.

The area of a triangle is
1/2 (length of the base) times (height) .Knowing that, all you have to do is draw a triangle in such a way that
the length of the base (in cm), multiplied by the height (in cm) is 12 .

There are an infinite number of ways to do it, so finding one should not be
a problem.