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In triangle PQR, angle Q=84^@, angle R=...

In `triangle PQR`, `angle Q=84^@, angle R= 48^@`, `PS bot QR` at S and the bisector of `angle P` meet QR at T. What is a measure of `angle SPT`?
`triangle PQR` में,`angle Q=84^@, angle R= 48^@`, `PS bot QR` और `angle P` का द्विभाजक QR से T पर मिलता है `angle SPT` का मान क्या होगा ?

A

`21^@`

B

`12^@`

C

`24^@`

D

`18^@`

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