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Does a tetrahedron have any right angles?
No. A right angle would be 90 degrees; a tetrahedron is composed of four equilateral triangles, which by definition have equal angles of 60 degrees apiece.* * * * *Wrong!A tetrahedron is a solid shape enclosed by any four triangles. Only a regular tetrahedron that requires equilateral triangles. So an ordinary tetrahedron can have right angles - up to 3 of them at one vertex.
What is the fewest number of triangles that make up a trapezoid?
The fewest number of triangles that make up a trapezoid are two isosceles triangles.
What are the 5 basic polyhedrons?
Tetrahedron (4 triangles, like a pyramid design with a triangular base) Cube Octahedron (8 triangles - like two pyramids stuck together at the base, one going up and one going down) Icosahedron (20 triangles) Dodecahedron (12 pentagons)
What kind of triangles make up the faces of a triangular hexahedron?
They can be any kind of triangles.
How do you make a quadrilateral out of four equilateral triangles?
Put the triangles in a line alternately pointing up and down.
Does a tetrahedron have any right angles?
No. A right angle would be 90 degrees; a tetrahedron is composed of four equilateral triangles, which by definition have equal angles of 60 degrees apiece.* * * * *Wrong!A tetrahedron is a solid shape enclosed by any four triangles. Only a regular tetrahedron that requires equilateral triangles. So an ordinary tetrahedron can have right angles - up to 3 of them at one vertex.
What solid figure can you make with 4 congruent triangles?
The only thing I can come up with would be a tetrahedron. You could make a pyramid with a square (open) base, I guess.
Do triangles have faces?
No.Faces relate to 3-dimensional objects, for example a tetrahedron, a cube. They are the 2-dimensional shapes that make up the surface of a 3-dimensional objectA triangle can be a face though, for example, a tetrahedron is made up of 4 triangular faces.
How many faces does a tetrahedron have?
A tetrahedron has 4 faces. A "regular tetrahedron" has an equilateral triangular base with three equilateral triangles as sides coming up from it.
A shape with 4 faces except for tetrahedron?
There are no other shapes that have only four flat faces except for a tetrahedron, although the faces thatmake up the tetrahedron can be triangles of various shapes and need not be all identical.
What is the fewest number of triangles that make up a trapezoid?
The fewest number of triangles that make up a trapezoid are two isosceles triangles.
How many triangles in a icosihenagon?
27 triangles make up an Icosihenagon
How many triangles in an hexagon?
3 triangles make up a hexagon.
What are the 5 basic polyhedrons?
Tetrahedron (4 triangles, like a pyramid design with a triangular base) Cube Octahedron (8 triangles - like two pyramids stuck together at the base, one going up and one going down) Icosahedron (20 triangles) Dodecahedron (12 pentagons)
How many triangles make up the shape of a pyramid?
There are 4 triangles that make up a pyramid. 4 on the sides and on the bottom a square or rectangle.
What kind of triangles make up the faces of a triangular hexahedron?
They can be any kind of triangles.
What shapes make up an octagon?
triangles
