There are an infinite amount.
rotation symmetry of a parallelogram Sequence
A cone does not have any parallel lines
10C2 = 45
sqrt(1000) = 31.62... So there are 31 (or 32 including 0 = 02).
It can have 0, it can have 8, and some numbers in between.
11
9
There are 0 lines of symmetry in a parallelogram.
0 lines of symmetry
a triangle has 0 lines of symmetry.
A heptagon can have 0, 1 or 7 lines of symmetry.
A triangle can have 0, 1 or 3 lines of symmetry.
for digits 0 to 9 0,1,3,8 have lines of symmtery
A zero technically has an infinite amount of lines of symmetry.
In general, a triangle can have 0, 1 or 3 lines of symmetry.
There is no such word as a "hepticgon". A heptagon can have 0, 1 or 7 lines of symmetry.