Question

match each diagram with the word it represents.
options: circumference, area, radius, diameter

Explanation:

Step1: Analyze first diagram

The first diagram has a dashed line along the edge of the circle, representing the distance around the circle, so it matches "circumference".

Step2: Analyze second diagram

The second diagram is a filled - in circle, representing the space inside the circle, so it matches "area".

Step3: Analyze third diagram

The third diagram has a dashed line passing through the center and touching two points on the circle, which is the diameter (a line segment passing through the center of a circle with endpoints on the circle), so it matches "diameter".

Step4: Analyze fourth diagram

The fourth diagram has a dashed line from the center to a point on the circle, which is the radius (a line segment from the center of a circle to a point on the circle), so it matches "radius".

Answer:

1. First diagram - circumference
2. Second diagram - area
3. Third diagram - diameter
4. Fourth diagram - radius