equilateral, isosceles, right-angle and scalene
Which is far more accurate, and useful, than Huey, Dewey, Louis and Phooey, which is what I was tempted to reply!
pyramid
A polyhedron made from four triangles that are not equal is called a tetrahedron. Specifically, if the triangles are not congruent, it is referred to as an irregular tetrahedron. Tetrahedra are three-dimensional shapes with four triangular faces, six edges, and four vertices.
Those would be SIMILAR triangles.
there are more than four: equilateral, right, obtuse, acute, scalene
Squares have four sides, triangles have three.
The former has four sides while the latter has three sides.
isoceles Triangle, Scalene triangle, Equilateral Triangle and Right Triangle.
A shape formed by four triangles would have to be a tetrahedron. But I believe that a tetrahedron can have at most three right angled triangles. One with four of them is, I think, impossible.
Yes. 4 Triangles Can Turn Into 8 Triangles.
A=1/2bh The area of a triangle is 1/2bh. If the base of it is a triangle and all 4 of the triangles aren't the same, then you have to find the area of the base triangle and then the three other triangles (which should all have the same area). If all four of the triangles have the same area, then just find the area of one of the triangles and multiply that by four. A triangular pyramid that has four equal triangles is also called a tetrahedron.
You could draw four different triangles in a 4-sided polygon, but two are enough to define the polygon.
If you have 8 small triangles made of 16 lines how can you make four small triangles if it is a parallelogram?