9. The line segment joining the points A(- 1, 8) and B gets bisected by origin. Find the coordinates ofthe point B.10. For an advertisement purpose, a mall in the city is spreading a white light in the night time over asector of angle 70Â° to a distance of 10 km. Find the area of the city over which the light is spread.horin ith Monday. Find the probability that:

9. The line segment joining the points A(- 1, 8) and B gets bisected b

1.	9. The line segment joining the points A(- 1, 8) and B gets bisected by origin. Find the coordinates ofthe point B.10. For an advertisement purpose, a mall in the city is spreading a white light in the night time over asector of angle 70Â° to a distance of 10 km. Find the area of the city over which the light is spread.horin ith Monday. Find the probability that:
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