please solve this question
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Answered by
1
Answer:
answer is...
Step-by-step explanation:
ACB+OAB=180(SUPPLYMENTARY ANGLE)
40+OAB=180
OAB=180-40
OAB=140.
HOPE IT'S HELPS...
Answered by
0
Answer:
140
Step-by-step explanation:
triangles
180-40
=40degree
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