Looking close to A major chord?

Now let's see the degrees and notes:
Degree: 1  2  3  4  5  6  7  1
Note:   A B C# D E F# G#

The scale has the following chords: 

A major B minor C# minor D major E major F# minor G#dim

here is the major scale chord format:

I = major,  ii = minor, iii = minor, IV = major, V = major, vi = minor, vii = diminished

Triads and with 7th

• I – A major, A major seventh (Amaj, Amaj7)
• ii – B minor, B minor seventh (Bm, Bm7)
• iii – C sharp minor, C# minor seventh (C#m, C#m7)
• IV – D major, D major seventh (D, Dmaj 7)
• V – E major, E dominant seventh (E, E7)
• vi – F sharp minor, F# minor seventh (F#m, F#m7)
• vii° – G# diminished, G# minor seventh flat five (G#°, G#m7b5)

Here are some popular chord progressions:

• I-V-vi-IV: A very popular progression in pop music, especially in pop/rock. In the key of A major, Adele uses A and E as the I and V chords. 
• 12-bar blues: A popular progression in popular music, including the blues. The blues progression is based on the I-IV-V chords of a key. 
• I-iv: A common modern chord progression that works well with chords such as D major to G minor or B minor to G minor. 
• ii-V-I: A common progression in jazz that is also used in many genres of popular music. 
• II VI: Also known as 2 5 1, this is one of the most famous jazz chord progressions. It takes its name from the 2nd, 5th, and 1st chord of the scale.