Question

Triangle G H J is rotated 90 degrees about point X to form triangle S T R.
Triangle GHJ is rotated 90° about point X, resulting in triangle STR. Which congruency statement is true?

TR ≅ GJ
∠S ≅ ∠H
TS ≅ HG
∠R ≅ ∠G

Answer 1

TS ≅ HG.

Reason: The vertex order shows the rotation maps G→S, H→T, J→R. A rotation is rigid, so corresponding segments match: TS (T↔H, S↔G) corresponds to HG.