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answer in the picture.
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Answer:
angle AoD=115
Step-by-step explanation:
property 1
vertically opposite angles are equal
angleAOD=angleCOB,assume=x
angleAOC=angleBOD,assume=y
given that angleAOC+angle BOD=130
so,y+y =130
2y=130
y=65
o the centre it measures 360 degrees
angleAOC+angle BOD+angle AOD+angleCOD=360
y+y+x+x=360
65+65+2x=360
2x=360-130
2x=230
x=115
angle AOD=115
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