Equilateral Triangle
You see an equilateral triangle.
(1) Move the red point in any direction and answer the following questions:
(a) How does h and d behave when the red point is anywhere
inside the triangle?
(b) What happens when the point is outside?
(c) Move point A and B and find out if they behave
in the same way in some other equilateral triangle
(2) Move the red Point on Mc.
(a) How does da and h behave to each other?