Question

which two triangles are congruent? complete the congruence statement.

Explanation:

Step1: Identify congruent - looking triangles

By observing the angle - side - angle (ASA) markings (the same angle and side lengths indicated by the red arcs and lines), we can see that $\triangle GHI$ and $\triangle BCD$ have two equal angles and the included side equal.

Step2: Write the congruence statement

The order of the vertices matters for congruence. Since the corresponding parts match, the congruence statement is $\triangle GHI\cong\triangle BCD$.

Answer:

$\triangle GHI\cong\triangle BCD$