Tell whether the triangles are similar.

The correct answer is: Not similar

m ∠E + m ∠F + m ∠G = 180°
78° + m ∠F + 47° = 180°
m ∠F + 125° = 180°
m ∠F = 55°
The angles in △EFG are 78°, 55°, and 47°. But since △HIJ has a 57° angle and △EFG does not, △EFG is not similar to △HIJ.