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In triangle ABC, D is a point on BC such...

In `triangle ABC`, D is a point on BC such that `angle BAD=1/2 angle ADC, angle BAC=87^@` and `angle C=42^@`. What is the measure of `angle ADB` ?
`triangle ABC` में, BC पर कोई बिंदु D इस प्रकार है कि `angle BAD=1/2 angle ADC, angle BAC=87^@` और `angle C=42^@` | `angle ADB` क माप क्या है?

A

`94^@`

B

`68^@`

C

`102^@`

D

`78^@`

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