Question

explore: what do you notice?
angle i is an inscribed angle.
move the red points to make a variety of different inscribed angles.
what are the characteristics of an angle that make it an inscribed angle? write your description of an inscribed angle below.

Explanation:

An inscribed angle is an angle formed by two chords in a circle where the vertex of the angle (like point I here) lies on the circumference of the circle, and the two sides of the angle (the chords) intersect the circle at two other points (like points B and A here). So the key characteristics are: the vertex of the angle is on the circle's circumference, and the two sides of the angle are chords of the circle (connecting the vertex to two other points on the circle).

Answer:

An inscribed angle is an angle with its vertex on the circumference of a circle, and its two sides are chords of the circle (connecting the vertex to two other points on the circle).