A square pyramid
the answer is a square pyramid
A quadrilateral based pyramid, of which, a square based pyramid is a special case.
A U shaped room has 8 edges on the floor, 8 on the roof and 8 vertical edges, making 24
According to Euler none; for all 3d shapes: Vertices + Faces = Edges + 2 ⇒ 12 + 8 = 19 + 2 ⇒ 20 = 21 So unless 20 does equal 21, no 3d shape has 8 faces, 19 edges and 12 vertices. Any 3d shape with 8 faces would be an octahedron.
A pyramid
A square base pyramid
Hexagonal prism
Octagon.
A U shaped room has 8 edges on the floor, 8 on the roof and 8 vertical edges, making 24
A hexagonal prism.
A hexagonal prism
According to Euler none; for all 3d shapes: Vertices + Faces = Edges + 2 ⇒ 12 + 8 = 19 + 2 ⇒ 20 = 21 So unless 20 does equal 21, no 3d shape has 8 faces, 19 edges and 12 vertices. Any 3d shape with 8 faces would be an octahedron.
A 3D shape that has 6 edges is called a hexagonal prism.
cube!
cube
cube
cube
A pyramid
A square base pyramid