In the given figure, l || m and t is transversal. If angle 1 and angle 2 are in the ratio 5:7, find the measure of each of the angles:- angle 1, angle 2, angle 3 and angle 8.
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as per the figure,
angle1+angle2=180
5x+7x=180
12x=180
x=180/12
x=15
therefore, two angles are 75,105
angle3=angle1 (vertically opposite angles)
angle2=75
angle8=angle1
angle8=75 (alternate exterior angles)
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