No. it can also be a rectangle
what is the congruent diagonals each of which divides the figure into two congruent isosceles right triangles
true
true
two congruent parts
two congruent parts
what is the congruent diagonals each of which divides the figure into two congruent isosceles right triangles
the line of symmetry
Only if the vertex angle being bisected is between the sides of equal length will the result be two congruent triangles.
true
true
true
Yes
A line of symmetry
True
line symmetry
Line of symmetry
two congruent parts