Circle Geometry Concepts

This video from MATH FUNatics introduces the concept of a circle, describing it as a round shape without corners or edges. It provides real-world examples like clocks, rings, donuts, plates, and motorcycle wheels. The video then explains various parts of a circle, including the surface, center, radius, chord, diameter, arc, segment, sector, circumference, semi-circumference, and semi-circle.

Which of the following objects is NOT typically circular?

• Clock

• Ring

• Donut

• Book

What is the term for the point that is equidistant from all points on a circle?

• Chord

• Radius

• Center

• Diameter

If a line segment has both endpoints on a circle, what is it called?

• Diameter

• Radius

• Chord

• Arc

Which is the longest chord in a circle?

• Radius

• Diameter

• Segment

• Arc

What do you call a region bounded by a chord and an intercepted arc?

• Sector

• Segment

• Arc

• Circumference

What is the term for half of a circle?

• Sector

• Arc

• Semi-circle

• Segment