1. The problem asks: What is an angle whose vertex is on the circle and whose sides are chords of the circle? 2. Let's analyze the options: - Intercepted Angle: This term is not standard for angles in circles. - Intercepted Arc: This refers to the arc between the points where the angle's sides intersect the circle, not the angle itself. - Inscribed Angle: An angle with its vertex on the circle and sides as chords of the circle. - Central Angle: An angle whose vertex is at the center of the circle. 3. The correct definition matches the "Inscribed Angle". 4. Therefore, the answer is **Inscribed Angle**.