Circles Packet 1 Review

Front

What is a Tangent Line?

Back

A line that touches a circle at exactly one point.

Front

What is a Chord?

Back

A segment whose endpoints lie on the circle.

Front

What is a Diameter?

Back

A chord that passes through the center of the circle.

Front

What is a Secant?

Back

A line that intersects a circle at two points.

Front

What is the Circumference of a Circle?

Back

The distance around the circle, calculated as C = 2πr or C = πd.

Front

What is a Minor Arc?

Back

An arc that is smaller than a semicircle.

Front

What is a Major Arc?

Back

An arc that is larger than a semicircle.

Front

What is a Semicircle?

Back

An arc that represents half of a circle.

Front

How do you calculate the Circumference of a circle with a radius of 6 cm?

Back

C = 2π(6) = 12π ≈ 37.68 cm.

Front

What is the relationship between a Chord and a Circle?

Back

A chord divides the circle into two arcs.