∆abc and ∆def satisfy the aaa correspondence. ∆abc and ∆ not a criterion for congruency of any two triangles.
∆abc and ∆def :
a) are always congruent.
b) are always noncongruent.
c)may or may not be congruent.

a) sas
b) sss
c) asa
d) aaa is not a criterion for congruency of any two triangles.

Triangles ABC and DEF may or may not be congruent, because the angle-angle-angle (AAA) postulate is not a criterion for congruency of any two triangles. This is because the angle-angle-angle postulate only incorporates the angles of the triangles, and the side lengths are not specified, so congruency may or may not be true for these triangles.

1.) May or may not

2.) AAA

they are =

Step-by-step explanation: on a number line from 0 to 3 (shown) -3 and +3 are all three "jumps" away from 0.

3                   2                     1                   0                -1                 -2                 -3

I hope I helped, good luck!