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In a triangle ABC, the bisectors of angl...

In a `triangle ABC`, the bisectors of `angle B` and `angle C` meets at point O. If `angle BOC=142^@` then the measure`angle A` is:
`triangle ABC` में, `angle B` तथा `angle C` के द्विभाजक O पर मिलते हैं | यदि `angle BOC=142^@` है, तो `angle A` का माप ज्ञात करे |

A

a)`52^@`

B

b)`68^@`

C

c)`116^@`

D

d)`104^@`

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