Similar triangles
A rectangle.. If you combine the triangles to make another square and then place all the squares in a row it makes a rectangle. you can also make a trapezium, if you place the 2 squares next to each other and then the triangles beside them...
A tetrahedron has four equilateral triangles as sides
A Triangular Pyramid has 4 triangles and 1 square.
No two equilateral triangles do not make a square but two right triangles do.
the shape that can make two smaller triangles is parallelogram.
It's easy all you have to do is make a heart shape
5 or 6 Depending on what shape you are thinking of
Hexagon
a square
An hexagon or a 6 sided shape
how many triangles are in a eight sided figure
The two triangles would make either a square or a rectangle.
All of them.
You could make a parallelogram.
There are 6 triangles in an octagon
Put four equilateral triangles so that each one of them has a vertex at a single point and the triangles abut one another. The shape will be 4/6 (= 2/3) of a regular hexagon.