Question

which circle c shows a chord that is not a diameter?

Explanation:

Step1: Recall chord and diameter definitions

A chord is a line - segment joining two points on the circumference of a circle. A diameter is a chord that passes through the center of the circle.

Step2: Analyze each circle

• In the first circle, the line - segment passes through the center C, so it is a diameter.
• In the second circle, the line - segment is outside the circle, not a chord.
• In the third circle, the line - segment is a radius (joins center C to a point on the circumference), not a chord.
• In the fourth circle, the line - segment joins two points on the circumference and does not pass through the center C, so it is a chord that is not a diameter.

Answer:

The fourth circle shows a chord that is not a diameter.