Given that lines a and b are parallel and that m∠4 = 128°, find m∠7.

(depending on the picture) angle 7=128 or angle 7=52

Step-by-step explanation:

If it is parallel and a line is intersecting it (depending on where angle 4 and angle 7 is located) they are congruent or they are supplementary.

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step-by-step explanation: