Question

In the given figure, l||m and t is a transversal. If angle 1 and angle 2 are
in the ratio 5 : 7, find the measure of each of the angle .angle1,2,3and8
​

Answer 1

Step-by-step explanation:

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)