Question 1131872
I have drawn a triangle.
It has one angle of {{{70}}}°  and another angle of {{{50}}}° .
Ben, you draw a triangle with the same two properties.
Ben says: My triangle will be congruent to yours, because all triangles that have those two properties must be congruent.

if two angles are same, third angle must be also same (the sum is {{{180}}}° )
so, third angle is {{{60}}}°

all we know is that all three angles are congruent, but we donn't know about sides length

that means  the corresponding sides might be equal in length or corresponding sides are in the same ratio

and we can say for sure that two triangles are {{{similar}}} because they have all their angles equal

however, we cannot prove that two triangles are {{{congruent}}}