8
There are an infinite amount.
rotation symmetry of a parallelogram Sequence
A cone does not have any parallel lines
sqrt(1000) = 31.62... So there are 31 (or 32 including 0 = 02).
Horizontal lines always have a slope of 0.
It can have 0, it can have 8, and some numbers in between.
The numbers that typically have two lines of symmetry are 0, 1, and 8. The number 0 has vertical and horizontal lines of symmetry, while 1 has a vertical line of symmetry. The number 8 has both vertical and horizontal lines of symmetry as well. Other numbers like 2 and 5 may have some symmetry but not consistently two lines.
9
There are 0 lines of symmetry in a parallelogram.
11
a triangle has 0 lines of symmetry.
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.