Inscribed Angle of a Circle

An angle formed by a tangent and a chord of the circle

An angle whose vertex is located outside the circle

An angle formed by two chords of the circle (correct)

An angle formed by a radius and a tangent of the circle

It is always less than 90 degrees

It is always equal to 90 degrees

It can vary based on the position of the chords (correct)

It is always greater than 90 degrees

The intercepted arc is always equal to the measure of the inscribed angle

The intercepted arc is always double the measure of the inscribed angle (correct)

The intercepted arc is always half the measure of the inscribed angle

The intercepted arc and inscribed angle have no specific relationship