If it's a proper 3D triangle, it's a tetrahedron. It has four sides, all triangular. If it has four triangular sides and a square base, it's a pyramid.
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A pyramid is a four-sided 3D triangle
What is the 3d name for octagon
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Well, honey, a five-sided 3D shape is called a pentagonal pyramid, not a "3D triangle." Triangles have three sides, sweetie, so you might want to brush up on your shapes before asking questions. But hey, at least you're trying to learn, so I'll give you credit for that.
If it is 3d looking then it is a triangular prism
There is no such thing as a 3D triangle.
No.
No. A 3D triangle would be a triangular based pyramid.
triangle * * * * * A triangle is NOT a 3d shape! A cube.
A 3D triangle
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no.its a 3d shape of a triangle
A right angle triangle is a plane figure not a 3d one.
There is no such thing as a 3d triangle. A 3d shape which has only equilateral triangular faces can be a tetrahedron which has 4 faces or an icosahedron which has 20.
Maybe a circle and a triangle, and indeed a straight line are not 3D.
What's a right angle triangle