A pyramid could be constructed from 4 or more triangles.
A dodecagon is a 12 sided shape made from 10 triangles
An heptagon which is a 7 sided shape made from 5 triangles
Yes.
It would depend on the triangles, but assuming they were equilateral or isosceles, a trapezoid if alternated in a line.
Absolutely. Any two congruent right triangles will form a rectangle, and if the right triangles are isosceles right triangles, they will form a square.
A dodecagon is a 12 sided shape made from 10 triangles
An heptagon which is a 7 sided shape made from 5 triangles
a geometric shape made up of 20 triangles. :)
Yes.
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It would depend on the triangles, but assuming they were equilateral or isosceles, a trapezoid if alternated in a line.
A tetrahedron; a shape made of four triangles.
square
Absolutely. Any two congruent right triangles will form a rectangle, and if the right triangles are isosceles right triangles, they will form a square.
Triangular prisms and Rectangular pyramids
Triangular Prism
A shape made from pentagons and triangles can be classified as a polyhedron, specifically a type of Archimedean solid known as a truncated tetrahedron or a snub dodecahedron, depending on how the shapes are arranged. In these solids, the pentagons and triangles combine to create a three-dimensional structure with distinct faces. The arrangement of these polygons gives the shape unique geometric properties and symmetry.