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The perimeter of triangle ABC is 24 cm a...

The perimeter of `triangle ABC` is 24 cm and its side, BC =9 cm. AD is the bisector of `angle BAC`, while I is the incentre AI:ID is equal to:
त्रिभुज ABC का परिमाप 24 सेमी है तथा इसकी भुजाBC = 9 सेमी है |AD,`angle BAC` का कोण समद्विभाजक है जबकि I अंतःकेंद्र है | AI:ID किसके बराबर है ?

A

`7:5`

B

`5:2`

C

`3:2`

D

`5:3`

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