Using the vertical angle theorem, the pair of congruent angles in the image is ∠FBY; ∠BGX
Vertical angles
Vertical angles are pair of opposite angles that are formed by intersecting lines. Vertical angles share the same vertex.
Vertical angles are congruent. This means vertical angles are equal.
Therefore, using the vertical angle theorem, the pair of congruent angles in the image is as follows:
Therefore, ∠FBY and ∠BGX are vertical angles and are congruent.
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