um,,, a sphere, a cylinder and maybe a cone? no, a cone has 1 corner i think..im NT sure on the third one....maybe its just a circle..
3 All triangles have 3 corners which are their vertices and it is the plural of vertex.
Vertices (singular vertex) are the corners.
An octagon has has 8 corners.
A triangle has 3 sides (or edges) and 3 corners (or angles)
It has 5 corners if it is a 3D shape like a piramid but if it is 2D it is 3
A very common shape: the triangle. It is a flat plane that has only 1 face and always has 3 vertices or corners.
A sphere has no faces an corners. The term "faces" and "corners" are applied to polyhedrons, figures with flat surfaces.
3 All triangles have 3 corners which are their vertices and it is the plural of vertex.
Vertices (singular vertex) are the corners.
A triangle is the only polygon with 3 corners (vertices). There is no polyhedron with 3 corners.
squ are
Each square has four corners, and each triangle has three corners. 5 squares X 4 corners/square = 20 corners 3 triangles X 3 corners/triangle = 9 corners 20 + 9 = 29 corners total.
All plane figures except circles have corners, and even that is debatable that circles have an infinite number of corners. Corners are simply where the line tracing the perimeter of the shape changes direction. Without any corners, you would have not have a convex figure. You would have a line. ■
An octagon has has 8 corners.
3 corners
A sphere has no corners, it is a 3-D circle.
there are no corners and there are 3 faces