Two.
six
There are infinite planes of symmetry in a cylinder in the same way that a circle has infinite lines of symmetry.
two of the faces of a cylinder are circles circles have an infinite number of lines of symmetry therefore cylinders have an infinite number of planes of symmetry
Three.
3.
one.
2 plane faces, 1 curved face
no
there are no corners and there are 3 faces
A cylinder and a cone have infinitely many planes of symmetry because of the circular face. However, a cylinder can also be cut in half lengthwise (imaging cutting a soda can in half), while a cone cannot (imagine cutting a ice cream cone in half). Therefore, a cylinder has one more plane of symmetry than a cone.
There are 2 faces on a cylinder.
A cylinder has three faces.