Respuesta :

Answer:

∠3 and ∠6

Step-by-step explanation:

Supplementary angles are angles that add up to 180°.

m∠3 is 90°. m∠6 is also 90° because they are vertical angles.

Vertical angles are non-adjacent angles formed by the intersection of two lines.

Now you have 90° + 90° = 180°

-Chetan K

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