#40 is true. In fact, it's truer than true, because it doesn't even take
that much to be sure that two triangles are congruent.
If all 3 sides of one triangle are congruent to all 3 corresponding sides
of the other one, then the triangles are congruent. We don't even need
to be told anything about the angles, because all of the corresponding
angles will turn out to be congruent.
#41 is false, and it's very easy to give a counterexample.
An equilateral triangle the size of your fingernail and an equilateral
triangle the size of my house both have three 60-degree angles.
EVERY equilateral triangle has three 60-degree angles.
But the triangles are not congruent.
