The major difference between the chord and the tangent is that the chord touches the circumference two times while the tangent touches the circumference only once.
Chord
A chord of a circle is a segment that you draw from one point on the circle to another point on the circle. The chord touches the circumference of the circle two times. The chord runs insides the circle and it runs from one point on the circumference to another.
Tangent
A tangent to a circle is a line that touches the outside of the circle in exactly one point. The tangent of a circle touches the circumference of a circle only once.
learn more on tangent and chord here: https://brainly.com/question/4470346
