Which statements could complete the proof?
X Angle 3 is congruent to angle 6. ✔ Angle 3 is congruent to angle 7. Angle 6 is congruent to angle 7. Angle 4 is congruent to angle 5.
congruent supplements theoremdefinition of a linear pair✔ definition of supplementary angleslinear pair postulate
⇒ 70
20
Use the drop-down menus to complete the proof.
vertical ✔ corresponding alternate interior alternate exterior
symmetric property definition of substitution ✔ transitive property corresponding angles postulate
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