What is the focus of this video tutorial?

• The uses of circles in architecture

• The history of circles

• The relative positions of a circle

• The parts of a circle

Which object is NOT used as an illustration in the video?

• Triangle

• Baseball and bat

• Weighing scale

• Globe

In the weighing scale illustration, where is the straight line positioned?

• Below the circle

• Intersecting the circle

• Inside the circle

• Above the circle

What is the term for a line that does not intersect a circle?

• Tangent

• Secant

• External

• Parallel

What is the point called where a tangent line touches a circle?

• Point of contact

• Point of tangency

• Point of origin

• Point of intersection

How many points of intersection does a secant line have with a circle?

• Two

• None

• Three

• One

Which of the following is NOT a relative position of a circle and a straight line?

• Concentric

• Secant

• Tangent

• External

What is the term for two circles that do not touch each other?

• External

• Internal

• Concentric

• Tangent

What is the term for one circle completely inside another without touching?

• Tangent

• Concentric

• Internal

• External

What is the term for two circles that share a common center?

• Tangent

• External

• Internal

• Concentric