8. In the given figure, name the pairs ofvertically opposite angles.s/

1.	8. In the given figure, name the pairs ofvertically opposite angles.s/e9. In the following figure, find the measure of other angles, if 41-50
Answer» 8. Pairs of vertically opposite angles: (1 and 3), (2 and 4), (6and 8) and (5and7) 9. angle 2 = angle 1 =50 degrees (vertically opposite angles). angle 1 +angle 3 =180 (linear pair of angles)angle 3 =130 angle 4 = angle 3 =130 degrees (vertically opposite angles)

8. In the given figure, name the pairs ofvertically opposite angles.s/e9. In the following figure, find the measure of other angles, if 41-50

Answer»

8. Pairs of vertically opposite angles:

(1 and 3), (2 and 4), (6and 8) and (5and7)

9. angle 2 = angle 1 =50 degrees (vertically opposite angles). angle 1 +angle 3 =180 (linear pair of angles)angle 3 =130

angle 4 = angle 3 =130 degrees (vertically opposite angles)