5 and 6 please urgent please
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5.
i)Given that angle 1 =145°
Here angle 1 = angle 3( since vertically opposite angles are equal)
Then angle 3 = 145°
angle 1 + angle 2 = 180°(linear pair)
145°+angle 2=180°
angle 2=180-145
angle 2=35°
and angle 2=angle 4(vertically opposite angles)
Therefore,Angle 1=145°
Angle 2=35°
Angle 3=145°
Angle 4=35°
i)Given that angle 1 =145°
Here angle 1 = angle 3( since vertically opposite angles are equal)
Then angle 3 = 145°
angle 1 + angle 2 = 180°(linear pair)
145°+angle 2=180°
angle 2=180-145
angle 2=35°
and angle 2=angle 4(vertically opposite angles)
Therefore,Angle 1=145°
Angle 2=35°
Angle 3=145°
Angle 4=35°
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