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Are the two bases on a triangular prism equilateral triangles?
They can be, but they don't have to be equilateral to be a triangular prism.
What 3D shapes have triangular faces?
In geometry, a deltahedron (plural deltahedra) is a polyhedron whose faces are all equilateral triangles. The name is taken from the Greek upper case delta (Δ), which has the shape of an equilateral triangle.
What is the difference and similarities between a prism and a pyramid?
a prism is constructed from two parallel and congruent regular polygons. with vertices joined by edges of length equal to that of the polygons a pyramid has a square base and has 4 triangle joining at a vertex above the centre of the square base. the triangles are isosceles triangles (and can even be equilateral)
Does a triangular prism have one square face?
yes it can, if the length and width of the non-triangular face(s) are the same. eg a triangular prism with triangles of side lengths 3 cm 4 cm & 5 cm and length between the end triangles of 5 cm will have one square face. If the ends are isosceles or equilateral triangles with the side of equal length the same as the length of the prism it will have 2 or 3 square faces.
What is a shape with 2 triangles at either end joined with 3 rectangles called?
triangular prism
Are the two bases on a triangular prism equilateral triangles?
They can be, but they don't have to be equilateral to be a triangular prism.
How many congruent faces are on a triangular prism?
The minimum numbers of congruent faces are as follows: On an equilateral triangular prism: one pair of triangles On a right equilateral triangular prism: one pair of triangles and one triplet of rectangles.
How many planes of symmetry does a right prism with equilateral triangles have?
five
What does a rectangular prism pyramid consist of?
3 rectangles and 2 equilateral triangles
An octahedron is made up of how many triangles?
Oh, dude, an octahedron is made up of 8 triangles. Yeah, like, imagine a stop sign, but in 3D and with triangles instead of sides. So, if you're ever in a geometry showdown and someone asks you how many triangles are in an octahedron, you can confidently say 8 and totally impress them.
What is a prism with triangular faces called?
If it has only two triangles then it is a triangle based prism. If it is has two n-sided polygonal faces and n triangles then it is a n-polygonal antiprism.
Are all the sides of a octahedron equilateral triangles?
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. The faces of octahedra can be triangles, quadrilaterals, pentagons, hexagons or heptagons. There are many examples of octahedra - a hexagonal prism, for example - which has no triangular face. At the other extreme, all the faces of a regular octahedron are equilateral triangles.
What 3D shapes have triangular faces?
In geometry, a deltahedron (plural deltahedra) is a polyhedron whose faces are all equilateral triangles. The name is taken from the Greek upper case delta (Δ), which has the shape of an equilateral triangle.
What is the difference and similarities between a prism and a pyramid?
a prism is constructed from two parallel and congruent regular polygons. with vertices joined by edges of length equal to that of the polygons a pyramid has a square base and has 4 triangle joining at a vertex above the centre of the square base. the triangles are isosceles triangles (and can even be equilateral)
Is regular prism an equilateral prism?
not necessarily... it can be any triangle.
Does a triangular prism have one square face?
yes it can, if the length and width of the non-triangular face(s) are the same. eg a triangular prism with triangles of side lengths 3 cm 4 cm & 5 cm and length between the end triangles of 5 cm will have one square face. If the ends are isosceles or equilateral triangles with the side of equal length the same as the length of the prism it will have 2 or 3 square faces.
3D shape with 4 triangles?
The three-dimensional shape consisting of 4 triangles is called a pyramid, or a triangular prism.
