Question

8.)What is the Measurement of angle 2?

9.) What is the measure of angle 7?

Answer 1

angle 2 = 90° {corresponding angles}

angle 7 + angle 5 = 180° {linear pair}

or, angle 7 + 100° = 180° {angle 5 is corresponding to 100°}

so, angle 7 = 80°