Parts of a Circle

Front

A line segment connecting any two points on a circle is called a _____________.

Back

chord

Front

A diameter is also a chord. True or False?

Back

True

Front

What is the diameter of a circle?

Back

The longest chord of a circle, passing through the center.

Front

The distance from the center of the circle to any point on the circle is called the...

Back

radius

Front

What does 'circumference' mean?

Back

Distance around a circle.

Front

What is the formula for the circumference of a circle?

Back

C = 2πr or C = πd, where r is the radius and d is the diameter.

Front

What is the relationship between diameter and radius?

Back

Diameter is twice the radius (d = 2r).

Front

What is a sector of a circle?

Back

A region enclosed by two radii and the arc between them.

Front

What is a segment of a circle?

Back

A region enclosed by a chord and the arc connecting its endpoints.

Front

What is the area of a circle?

Back

A = πr², where r is the radius.