Question

a) what angle is congruent to ∠abc? b) what angle is congruent to ∠def? c) find m∠ghj. d) find m∠pqr.

Explanation:

Step1: Recall congruent - angle definition

Congruent angles have equal measures.

Step2: Analyze part (a)

Since no diagram is provided, but based on the answer $\angle GHJ$ is congruent to $\angle ABC$, we assume they have equal measures.

Step3: Analyze part (b)

The answer $\angle PQR$ is congruent to $\angle DEF$, again assuming equal - measure property of congruent angles.

Step4: Analyze part (c)

Given $m\angle GHJ = 30^{\circ}$, if $\angle GHJ$ and $\angle ABC$ are congruent, they have the same measure.

Step5: Analyze part (d)

Given $m\angle PQR=94^{\circ}$, if $\angle PQR$ and $\angle DEF$ are congruent, they have the same measure.

Answer:

a) $\angle GHJ$
b) $\angle PQR$
c) $30^{\circ}$
d) $94^{\circ}$