Parts of a Circle

This video tutorial explains the different parts of a circle, including the diameter, radius, circumference, arc, sector, chord, segment, and tangent. It provides definitions and descriptions of each part, followed by practice questions to reinforce learning. The video concludes with a thank you message.

What is the definition of a circle in mathematical terms?

• A shape with four equal sides

• A line segment with two endpoints

• A set of points equidistant from a center point

• A polygon with three sides

Which part of a circle is the distance across the circle passing through the center?

• Radius

• Circumference

• Diameter

• Chord

What do you call a line that touches the circle at exactly one point?

• Diameter

• Tangent

• Radius

• Chord

What is the term for the area between a chord and the edge of a circle?

• Tangent

• Arc

• Segment

• Sector

In the practice questions, what are you asked to do with the parts of a circle?

• Calculate their lengths

• Match descriptions to names

• Draw them

• Ignore them