Basic Geometry Circles

Which of the following is a good definition for a circle?

• All points equidistant from a single point

• A round polygon

• A continuous curve

• Two semi-circles put together

What is being represented in the image?

• Diameter

• Chord

• Radius

• Concentric Circles

The radius is ____ the diameter

• half

• double

• one third of

• bigger than

Tags

CCSS.HSG.C.A.2

What is this?

• Compass

• Circle creator

• Pencil swingy-thing

• Arc maker

What geometric construction is shown in the diagram below?

• an angle bisector

• a line parallel to a given line

• an angle congruent to a given angle

• a perpendicular bisector of a segment

Tags

CCSS.HSG.CO.C.9

Based on the construction, which conclusion is not always true?

Tags

CCSS.HSG.CO.C.9

Which shows a tangent line?

• 
• 
• 
• 

Determine if Line AB is tangent to the circle

• Yes

• No

A line that touches a circle in just one point.

• tangent

• chord

• secant

• radius

Tangent lines are ______ to a radius

• parallel

• perpendicular

• touching