The F-sharp major triad, more commonly called the F-sharp major chord or simply the F-sharp chord for short, consists of the notes F-sharp, A-sharp and C-sharp. It is enharmonic with the G-flat major chord – meaning that both chords are the same on the piano, even though the notes are different.
Here is the F-sharp major chord on the bass clef staff:
Here is the above chord on the piano:

As a major triad, the F-sharp chord consists of a major third plus a minor third. The interval from F-sharp to A-sharp is a major third, while the interval between A-sharp and C-sharp is a minor third.
Inversions of the F-sharp Chord
If the root of the F-sharp chord – F-sharp – is the bass note (i.e., the bottom note), then the chord is in root position:
If the third of the chord – A-sharp – is the bottom note, then the chord is in first inversion:

If the fifth of the chord – C-sharp – is the bass note, then the chord is in second inversion. (C-sharp is called the fifth of the chord because the interval from the root F-sharp to C-sharp is a fifth.)

F-sharp Major Arpeggios
If the notes of a chord are played one after the other, the chord is said to be arpeggiated. Here are the standard fingerings for arpeggios of the F-sharp chord. Make sure you learn these fingerings!
(If you don’t understand the below notation, you should start with my How to Read Sheet Music course.)
F-sharp major arpeggio in root position:
F-sharp major arpeggio in first inversion:
F-sharp major arpeggio in second inversion:
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