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In the given figure 'O' is the centre of...

In the given figure 'O' is the centre of the circle SP and TP are the two tangents at S and T respectively. `angle SPT` is `50^(@)`, the value of `angle SQT` is:

A

`125^@`

B

`65^@`

C

`115^@`

D

none of the above

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The correct Answer is:
C
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