The proves that ∆abc and ∆efg are congruent by the sas criterion.
a. angle a is congruent to angle e
b. b is congruent to angle f
c. ab=ef
d. angle c is congruent to angle g
if ab ≠ ef, criterion for congruency is violated
a. ssa
b. asa
c. sss
d. sas
in this situation, angle c g.
a. may be congruent to
b. is congruent to
c. cannot be congruent to

The condition  angle A is congruent to angle E proves that ∆ABC and ∆EFG are congruent by the SAS criterion.

If AB ≠ EF, the  SSA criterion for congruency is violated.

In this situation, angle C  cannot be congruent to angle G.

Step-by-step explanation:

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation: