Math, asked by Rukshanaa14, 1 year ago

In figure O is the centre of the circle. If OAC = 20° and angle
OBC =40° find angle OAB

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Answered by lakshay027587
1
your answer ......................…………………………………




angle oac = 20°
angle obc = 40°
angle oab = 320°

40 + 20 = 60
360- 60= 320

talibbeiggcet: it's wrong dude
lakshay027587: sorry i forgot
Answered by talibbeiggcet
1
hope it helps dear...
I used two theorms
1. the angle between the tangent and radius =90
2. the angle between two lines is equal to angle between their perpendiculars
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