do I merge those 2 sentence correctly?

The figure, in the sheet one, shows that the result is acceptable.
( your sentence)
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in the sheet one <---------------is not a non-defining clause!
You don't need to use any comma there.
The figure in the sheet one shows( has shown) that the result is
acceptable.
May I ask you a question?
How come there is only one figure in the sheet one?


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