Parallel Lines-lines that never cross and stay the same distance apart.
It is possible for all nine lines to be perpendicular to at least one other line.
Nine. From each vertex to the middle of the opposite side.
their are 9 lines of symmetry.do you have a boyfriend.
Any regular polygon of n sides, has an order of symmetry of n. Therefore, since a nonagon has nine sides, a nonagon has an order of symmetry of 9.
Trapezoid or Trapezium.
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There are absolutely 0 parallel lines in any given triangle.
A 9 sided nonagon normally has no perpendicular lines that meet at right angles
Yes opposite lines are parallel
A nine sided nonagon has 27 diagonals
Not sure about angels and parrellel, but a trapezium has four angles and only one pair of parallel lines.
None but all three sides are equal in length.
In general, none, but there can be nine.
Parallel Lines-lines that never cross and stay the same distance apart.
You mean lines or sides? But,octagon has parallel lines. Um, four parallel lines.
up to four pairs is the answer