2 small triangles 1 med. triangle 2 large triangles 1 parallelogram and a square
triangles
circle
Three triangles.
You can make any triangle, quadrilateral or pentagon with three suitable triangles.
a square and to triangles
A trapezoid has 2 triangles within it.
2 hexagons and six triangles
2 small triangles 1 med. triangle 2 large triangles 1 parallelogram and a square
No because isosceles triangles are 2 dimensional shapes.
Triangles (four of) and a square.One square as base and four triangles as sides.
The answer depends on the shapes and sizes of the triangles. I can make a big triangle, a quadrilateral, pentagon, hexagon, etc up to 12 sides.
triangles
circle
There are technically many shapes that could be put into the form of a triangle, but only triangles can make real triangles (without getting into more complicated shapes).
use 4 triangles, make 2 trapezoids then put them into a hexagon
Three triangles.