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If ‘'O’ is the orthocenter of the `triangle ABC` and `angle BAC = 80^@`, then the measure of `angle BOC` is :-
यदि त्रिभुज ABC का लम्ब केन्द्र 'O' है तथा `angle BAC = 80^@` है, तो `angle BOC` का माप है।

A

`120^@`

B

`90^@`

C

`80^@`

D

`100^@`

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