Identify Parts of Circles

Which part of a circle is a line that touches the circle at exactly one point?

• Secant

• Tangent

• Radius

• Chord

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

• Radius

• Chord

• Circumference

• Diameter

Identify the part of a circle that is a portion of the circumference that is larger than a semicircle.

• Major sector

• Major arc

• Minor sector

• Semicircle

Which part of a circle is a portion of the circumference that is smaller than a semicircle?

• Chord

• Arc

• Diameter

• Radius

What is the name of the line segment that passes through the center of a circle with endpoints on the circle?

• Chord

• Tangent

• Diameter

• Radius

Define the term 'radius' in relation to a circle.

• The radius of a circle is the length of the circumference.

• The radius of a circle is the diameter divided by 2.

• The radius of a circle is the distance from the center of the circle to any point on its circumference.

• The radius of a circle is the distance from the center to the edge of the circle.

Define the term 'diameter' in relation to a circle.

• A straight line passing from one side to the other through the center of the circle.

• The perimeter of the circle

• A curved line that connects two points on the circle

• The distance from the center to any point on the circle

A line that intersects a circle at exactly one point is known as what?

• Tangent

• Chord

• Radius

• Secant

Differentiate between a major arc and a minor arc in a circle.

• A major arc is always the shortest arc in a circle.

• A minor arc measures more than 180 degrees.

• A major arc measures less than 180 degrees.

• In a circle, a major arc measures more than 180 degrees, and a minor arc measures less than 180 degrees.

A line that touches a circle at exactly one point without intersecting the circle is known as what?

• Diameter

• Radius

• Chord

• Tangent