In a major key, the minor diatonic triads are

Answer 1

In a major key, the diatonic triads built on the scale degrees are as follows:

1. I - Major
2. ii - Minor
3. iii - Minor
4. IV - Major
5. V - Major
6. vi - Minor
7. vii° - Diminished

From this, we can identify the minor diatonic triads in a major key:

• ii (the supertonic triad, built on the second degree)
• iii (the mediant triad, built on the third degree)
• vi (the submediant triad, built on the sixth degree)

So, the minor diatonic triads in a major key are ii, iii, and vi.