a pyramid is a 3D shape :)
It is a 3 dimensional shape
You cannot have a 2d pyramid - whether or not it is square based. The 2d cross section will depend on the plane of the cross section.
It's a 2D shape.
this is the shape of 2d cone
a pyramid is a 3D shape :)
It is a 3 dimensional shape
3D = Pyramid 2D = Triangle
3D = Pyramid 2D = Triangle
Heptagonal pyramid * * * * * No. A heptagonal pyramid has 8 vertices. You need a hexagonal pyramid or a pentagonal dipyramid for 7 vertices. Or, in 2d, a heptagon.
Pentagon 2d shape is a pentagon 3d object is a pyramid.
You cannot have a 2d pyramid - whether or not it is square based. The 2d cross section will depend on the plane of the cross section.
The Answer Is Cuboid For A 3D Figure Or A Dodecagon For 2D Figure. * * * * * Or it could be a hexagonal pyramid. Or a rectangular dipyramid.
A 3 dimensional triangle is called a pyramid, otherwise a 2D three sided polygon shape is exactly what you called it, a triangle.
It's a 2D shape.
A rhombus is a 2D shape.
2d