Definitions of 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

The definition of a circle is

• set of all points in a plane that are the same distance from a point called the center

• the distance around a secant

• a large figure

• a pizza, orange, plum, or watermelon

The definition of radius is

• distance from one point to another point

• distance around the circle

• distance from the center to any point on the circle

• distance across the circle through the center

The definition of diameter is

• distance from the center of any point on the circle

• distance across the circle through the center

• distance from one point to another

• distance around the circle

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

• Semi-Circle

• Line PR

• Major Arc

• Point V

• Point of Tangency

• Minor Arc

• Secant Line

which segment represents the radius

• AC

• AB

• LM

• BD

What is the mathematical name given for the line AB?

• Diameter

• Radius

• Tangent

• Chord

A segment whose endpoints lie on a circle is a _______.

• tangent

• chord

• diameter

• secant

Tags

CCSS.HSG.C.A.2

What best describes segment AB?

• chord

• secant

• tangent

• diameter

The set of points equidistant from a given point (the center)

• Circle

• Diameter

• Arc

• Tangent