Ah, the rectangular prism is a wonderful shape to work with. It has multiple lines of symmetry! If you draw a line from the center of one face to the opposite face, and another line from the center of the other face to its opposite, you'll see the symmetry and balance that this shape holds. Keep exploring and creating, my friend.
The answer is 8, that's the only logical outcome.
it has 4 lines of symmetry
a scalene triangle has no lines of symmetry
oneyou
A regular Undegon (11 sided polygon) has 11 lines of symmetry. It also has an order of rotation symmetry of 11.
An ellipse has two lines of mirror symmetry: the line that includes the two foci of the ellipse and the perpendicular bisector of the segment of that line between the two foci.
3
Three.
they have 4 rectangular
The question is too ambiguous because, depending on its orientation, the top of a triangular prism can be a triangualar face, a rectangular face or an edge.
A rectangular prism has 3 sets of 4 parallel lines and 24 angles.
16 * * * * * Not sure what a rectangular octagon is but no kind of octagon has more than 8 lines of symmetry.
5
18
2
3D shapes don't have lines of symmetry they have plane's of symmetry.
5
4