7.3 Circles Circles Circles (Flashcard Review)

Front

What is the formula for finding the circumference of a circle?

Back

Front

What is the distance from the center to any point on the circle called?

Back

Radius.

Front

What is the approximate value of π?

Back

3.14.

Front

What does circumference mean?

Back

The distance around a circle.

Front

What is the diameter of a circle?

Back

The distance across the circle through the center.

Front

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

Back

10 (since diameter = 2 * radius).

Front

What is the relationship between diameter and radius?

Back

Diameter = 2 * Radius.

Front

What is the area of a circle with radius r?

Back

Front

How do you calculate the circumference using the radius?

Back

Front

What is the term for a line segment that passes through the center of the circle and connects two points on the circle?

Back

Diameter.