It has a line of rotational symmetry - along the diagonal.
Axis of symmetry.
yes
An equilateral triangle has both line symmetry and rotational symmetry. A non-equilateral isosceles triangle has line symmetry but not rotational symmetry. A scalene triangle has neither kind of symmetry.
No.
yes
Yes * * * * * Not generally.
1 its from the "right angle point" on a diagonal to the center of the longest line.None normally but if it's an isosceles right angle triangle it will have 1 line of symmetry.
An equilateral triangle and an isoceles triangle have one line of symmetry.
no.
If you draw a diagonal line from corner to corner of a parallelogram, that is a line of symmetry.
Yes, because if you halve a square across a diagonal line of symmetry then one corner has 90 degrees and the other two are 45 degrees.