Construct/make a tetrahedron, which is three-dimensional.
Sort of depends on how the two triangles are beforehand. One nice way to make four equilateral triangles from six matchsticks is to make a tetrahedron (a triangular pyramid).
No.
Rhombus
a larger equilateral triangle
No but they will make a hexagon
Sort of depends on how the two triangles are beforehand. One nice way to make four equilateral triangles from six matchsticks is to make a tetrahedron (a triangular pyramid).
A parallelogram.
Join the 6 triangles like pizza slices
No two equilateral triangles do not make a square but two right triangles do.
Equilateral triangles are also equiangular.
No.
draw a big triangle then make a line halfway through it
Rhombus
a larger equilateral triangle
No but they will make a hexagon
Make a triangle, each of whose sides is 2 matchsticks long. This uses six matchsticks. Join the middle points of the sides of this triangle to one another - using another three match sticks. You will then have four small triangles and one large one.
Six equilateral triangles.