Answers:

Question #6

here we have to keep in mind that angles 8 and a5 are congruent, and angles 5 and 3 are supplementary, so we can write:

amplitude of angle 8 = amplitude of angle 5 = 180 - 128 = 52 degrees

so the third option

here, by definition, the angles 4 and 7 are alternate interior, so the fourth option

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