9 cm 5 cm 3 cm

Can this triangle have to be congruent or doesn't have to be congruent

no. it cant be congruent

no it is not becouse there not the same length and assuming that the angles are 90 degrees

Step-by-step explanation:

Congruent Triangles. When two triangles are congruent they will have exactly the same three sides and exactly the same three angles. The equal sides and angles may not be in the same position (if there is a turn or a flip), but they are there.