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+1 vote
1.5k views
in Mathematics by (150 points)

by (65.0k points)
please provide a proper image of question
by (150 points)
Fig 8.13

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1 Answer

+1 vote
by (714 points)
No, it is not perpendicular.

As seen in question, AOB is an isosceles triangle.where AO and AB are equal being radius.

So angle AOB  is equal to angle OBA which is equal to 40.

So, in triangle AOB, angle AOB is of 100.

So angle APB will be 80

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