Circle Definitions: Understanding the Eight Parts of a Circle

This video tutorial explains the eight key parts of a circle: radius, arc, circumference, sector, diameter, chord, tangent, and segment. It highlights the importance of understanding these components for solving area, perimeter, and circle theorem problems. Each part is defined and illustrated, emphasizing their unique characteristics and roles in geometry.

Which of the following is NOT a part of a circle?

• Radius

• Arc

• Tangent

• Square

What is the term used for the distance around a circle?

• Chord

• Radius

• Circumference

• Diameter

Which line passes through the center of a circle?

• Chord

• Radius

• Tangent

• Diameter

What is the name of a line segment that connects two points on a circle but does not pass through the center?

• Radius

• Chord

• Diameter

• Tangent

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

• Radius

• Diameter

• Chord

• Tangent

What do you call a 'slice' of a circle?

• Chord

• Segment

• Sector

• Arc

What is the term for the curved part of the circle's circumference?

• Arc

• Sector

• Segment

• Tangent