Parts of a Circle

Front

The distance all the way across the circle, but through the center, is called the...

Back

Diameter

Front

Name the circle part shown: A line segment whose endpoints lie on the circle.

Back

Chord

Front

What is segment AB in a circle?

Back

Diameter

Front

What is line CB called in a circle?

Back

Diameter

Front

Is the red line a radius or diameter of the circle?

Back

Radius

Front

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

Back

Radius

Front

What is the total distance around the circle called?

Back

Circumference

Front

What is the area of a circle with radius r?

Back

πr²

Front

What do you call a line segment that passes through the center and connects two points on the circle?

Back

Diameter

Front

What is the longest chord in a circle?

Back

Diameter