Question

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Answer 1

Step-by-step explanation:

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Answer 2

Answer:

angle1,angle3,angle7,angle5=100°

angle1,angle3,angle7,angle5=100°angle2,angle4 angle6,angle8=80°

angle 1 and angle 2 are supplementary angles

therefore

angle 1 + angle 2=180

5x+4x=180

9x=180

x=20

angle1=5×20=100°

angle 2=4×20=80°

angle 4=angle2 (vertically opposite angles)

angle3=angle1 (vertically opposite angles)

angle6=angle2(corresponding angles)

angle7=angle3(corresponding angles)

angle8=angle4(corresponding angles)

angle5=angle1(corresponding angles)

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