Question

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Answer 1

Answer:

angle 1=angle 3=angle 5=angle 7= 5

angle 2=angle 4=angle 6=angle 8

Answer 2

Answer:

Angel 1 and 2 = 5x and 7x

Therefore 5x+7x=180°(linear pair)

12x=180

x=180÷12

x=15

Here, 5x =5×15= 75° (angle 1)

7x =7×15=105°(angle 2)

Hence, angle 1 =angle 3(vertically opposite

Angles)

=75°

Angle 4 = angle 2(vertically opposite angle)

Therefore angle 8 =angle 4

(corresponding angles)=105°

Here, angle 1= 75°

Angle2=105°

Angle3=75°

Angle 8=105°

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