one time
64
Four pairs.
Infinte
It depends you want. For instance, if you were to draw the plus sign then all angles are 90 degrees. There are 2 lines of symmetry. Furthermore, there are 2 straight angles. To conclude there are many characteristics.
once
Once.
one time
It depends on how many lines intersect. An infinite amount.
It depends on how many lines intersect. An infinite amount.
In a plane, only one.
The addition sign is formed by two intersecting lines, as is the cross. The two lines are perpendicular to each other.
A minimum of two.
The three lines making up a triangle do not intersect (cross) each other. Two lines join at each corner of the triangle.
3 intersecting lines, because none of the three points are right angles.
2
it has 2