Parts of a Circle

Front

What is a Circle?

Back

A circle is a set of points in a plane that are equidistant from a fixed point called the center.

Front

What is a Radius?

Back

A radius is a line segment from the center of a circle to any point on the circle.

Front

What is a Chord?

Back

A chord is a line segment whose endpoints lie on the circle.

Front

What is a Secant?

Back

A secant is a line that intersects a circle at two points.

Front

What is a Tangent?

Back

A tangent is a line that touches the circle at exactly one point.

Front

What is an Arc?

Back

An arc is a part of the circumference of a circle.

Front

What is a Major Arc?

Back

A major arc is an arc that is greater than a semicircle.

Front

What is a Minor Arc?

Back

A minor arc is an arc that is less than a semicircle.

Front

What is a Semicircle?

Back

A semicircle is an arc that represents half of a circle.

Front

What is the Point of Tangency?

Back

The point of tangency is the point where a tangent line touches the circle.