What's a right angle triangle
A right angle triangle is a plane figure not a 3d one.
Pyramid
No.
triangle * * * * * A triangle is NOT a 3d shape! A cube.
no.its a 3d shape of a triangle
A right angle triangle is a plane figure not a 3d one.
Pyramid
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
1
no.its a 3d shape of a triangle
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.
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.