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yes, diagonal to the right and left, horizontal, and vertical.
a pentagon
A rectangle.
pentagram
No, on the contrary an octagon has no right angles
octagon
There are no right angles in an octagon.An 8 sided octagon normally has no right angles.
A rectangle. Obviously the right angles are in the four corners of the rectangle. The lines of symmetry occur across the horizontal and vertical. There are no lines of symmetry on the diagonal.
yes they can. They can be the bottom+top or the left+right.
yes, diagonal to the right and left, horizontal, and vertical.
infinite.
Yes.
a pentagon
it has four right angles and has four lines of symmetry
rectangle
it has four right angles and has four lines of symmetry
pentagram