If it is a 45-45-90 triangle, it will have symmetry from the 90 degree angle to the midpoint of the hypotenuse.
isosceles,equilateral,rightangled
One is 90 degrees, the other two can be any combination that adds up to 90.
Right Triangle A rightangled triangle, since the last angle has to be 90 degrees
a right angled triangle with the remaining angles both being 45 degrees will be a rightangled triangle and an isosceles triangle.
I quote " The square on the hypotenuse of a rightangled triangle..."
No.
no
Yes.
None.
bilateral symmetery
None.
2