Simply take the difference betwen the two x coordinates.
When a line segment connecting two points is horizontal the length of the segment can be found by finding the absolute value of the difference in x-coordinates of the two points.
line segment
a chord
A chord is a line which connects two points which lie on a circle.
A chord. ■
Add the x-coordinates of the points and take the absolute value
a line segment
When a line segment connecting two points is horizontal the length of the segment can be found by finding the absolute value of the difference in x-coordinates of the two points.
line segment
a chord
A chord is a line segment which connects any two points on a circle.
A chord is a line which connects two points which lie on a circle.
A chord. ■
A chord.
A chord. If it's not a segment, it's a secant line.
Subtract the x-coordinates of the points and take the absolute value. Using the Pythagorean Theorem, the y-value would be zero, and the distance the square root of its own square.
Chord.