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What pefect square does 40 fall between?
36 and 49
What are all pefect number less than 100?
6 and 28
Is 12 a square number and why or why not?
It is. Every number is a square number, though not necessarily a pefect square number. 12 is the square of sqrt(12) which is approx ±3.4641
How do you build triads in the key of A minor?
Quite the same way you would in any other minor key. In a minor key, the chords are as follows: i iidim III iv V VI VII. So, naturally, following the rules of building triads, one would build a minor triad for i, a diminished triad for ii, major for III, minor for iv, major for V, Vi, and VII. So, "i" would look like this: Root-->third-->fifth. Because it is a minor triad, the third is a minor third up from the root, and the fifth is a pefect fifth up from the root. So, in A-minor, the 'i' triad would be A(root), C(third), E(fifth). The same applies to all minor chords. The diminished chord is similar, but both intervals are minor thirds, rather than a minor third and a major third. So, in A-minor, that would be B, D, F. Major chords are the opposite of minor chords, the structure being major third, then minor third, rather than minor third, then major third. Hope this helps, let me know if there is anything I can clear up for you. Cheers, Dan
