the shape that can make two smaller triangles is parallelogram.
Hexagon
a square
You could make a parallelogram.
a weird trapezoid
the shape that can make two smaller triangles is parallelogram.
Hexagon
a square
The two triangles would make either a square or a rectangle.
All of them.
You could make a parallelogram.
Originating from one vertex there are 27 triangles
11
A parallelogram.
Square pyramid
There are 4 triangles that make up a pyramid. 4 on the sides and on the bottom a square or rectangle.
Two triangles can but its an irregular shape