Labeling Circles Part 1

Front

What is the diameter of a circle?

Back

The diameter is the longest distance across a circle, passing through the center. It is twice the length of the radius.

Front

What is a diameter in terms of segments?

Back

A diameter is a specific type of chord that passes through the center of the circle, connecting two points on the circumference.

Front

What is the relationship between diameter and radius?

Back

The diameter is double the length of the radius.

Front

If the radius of a circle is 5 cm, what is the diameter?

Back

10 cm

Front

What is a chord in a circle?

Back

A chord is a line segment with both endpoints on the circle.

Front

If segment AC is a diameter, what can be said about points A and C?

Back

Points A and C are endpoints of the diameter and lie on the circumference of the circle.

Front

How do you find the radius if you know the diameter?

Back

To find the radius, divide the diameter by 2.

Front

What is the formula for the circumference of a circle?

Back

Circumference = π × diameter.

Front

What is the formula for the area of a circle?

Back

Area = π × radius².

Front

If the diameter of a circle is 12 cm, what is the radius?

Back

6 cm