Defining Key Terms Related to Circles

A set of points on a flat surface (plane) with every point equidistant (the same distance) from a given point called the center.

• chord

• circle

• radius

• diameter

• circumference

The distance halfway across the circle is called the...

• radius

• diameter

• circumference

• area

Tags

CCSS.HSG.C.A.2

Which number best represents a radius?

• 1

• 2

• 6

• 9

Tags

CCSS.HSG.C.A.2

Is the red line a radius or diameter of the circle?

• Radius

• Diameter

Match the following vocabulary term with its appropriate part of the circle.

• Secant Line

• Point of Tangency

• Minor Arc

• Line PR

• Major Arc

• Point V

• Semi-Circle

Identify the angle highlighted in pink

• center of the circle

• minor arc

• central angle

• inscribed angle

Tags

G.GCI.4

G.GCI.2

What is being represented in the image?

• Inscribed Angle

• Interior Angle

• Secant

• Radius

The radius is __________ the diameter

• Half

• Double

• Equal to

• The area of

Tags

CCSS.HSG.C.A.2

A segment with 2 endpoints on the circle.

• Chord

• Diameter

• Radius

• Inscribed Angle

What is diameter?

• a straight line going from the center point of a circle to the outer edge

• a straight line going from the outer edge of a circle to the other outer edge

• a curved line that goes complete around the outside of a circle

• the area inside a circle

Tags

CCSS.HSG.C.A.2