Cylinder
No, a shape cannot have more than 3 edges meeting at a vertex and simultaneously have a right angled face. A right angled face implies that two edges form a right angle, which is only possible with three edges meeting at a vertex.
An egg does not have any edges in the traditional geometric sense, as it has a smooth, curved surface without sharp corners or defined edges. The shape of an egg is more akin to an oval or ellipsoid, which means it is continuous and rounded. Therefore, it can be said that an egg effectively has zero edges.
The shape can't exist: if you imagine a square face in 2D you have 4 edges and 4 vertices. Adding a further vertex out of the plane (introducing a 3rd dimension) you MUST have 4 more edges to join the original 4 vertices to the novel vertex. This sums to 8 edges as a minimum.This is of course assuming Euclidean geometry.
A polygon is any closed shape (all lines are connected to each other) having three sides or more with no curved edges at all. Therefore, a square is a polygon.
A circle.
One possible answer is an infinite cone. Spheres have one face but no vertex. No physical 3-D shape can have a vertex without having more than one face (a real cone typically has two: side and bottom).
A shape in fewer than 3 dimensions.A shape with one or more curved faces or edges.
cylinder
No, a shape cannot have more than 3 edges meeting at a vertex and simultaneously have a right angled face. A right angled face implies that two edges form a right angle, which is only possible with three edges meeting at a vertex.
A face, of a solid object, is a flat surface. If it is curved it is called a curved surface though sometimes it is also referred to as a face. Two faces meet at an edge, which is a line which may be straight or curved. Three or more faces meet at a point which is a vertex.
A shape with more than 12 edges is a dodecahedron which has 30 edges
A shape with seven edges is a polygon, more precisely it is called a heptagon.
The shape can't exist: if you imagine a square face in 2D you have 4 edges and 4 vertices. Adding a further vertex out of the plane (introducing a 3rd dimension) you MUST have 4 more edges to join the original 4 vertices to the novel vertex. This sums to 8 edges as a minimum.This is of course assuming Euclidean geometry.
Well, darling, an ellipsoid has one curved face and zero edges. It's like a smooth, sexy potato that's just all curves and no sharp edges. So, if you're looking for a shape with more edges, you might want to switch gears and go for something a little more angular.
A polygon is any closed shape (all lines are connected to each other) having three sides or more with no curved edges at all. Therefore, a square is a polygon.
I agree that Eiffel Tower looks letter "A", with a curved tip. Its true shape is somewhat more sharply curved.
A circle.