A major chord

A major chord for piano (including A/C# and A/E inversions) presented by keyboard diagrams.
Explanation: The regular A chord is a triad, meaning that it consists of three notes. On the picture of the keyboard, you can see the three notes of the A chord marked in red color.
Theory: The A major chord is constructed with a rootThe lowest note in the chord, a major thirdAn interval consisting of four semitones, the 3rd scale degree and a perfect fifthAn interval consisting of seven semitones, the 5th scale degree.
Fingerings: little finger, middle finger, thumb (left hand); thumb, middle finger, little finger (right hand).