Basic Circle Vocabulary

The set of ALL POINTS

that are EQUIDISTANT

from a point that is given to you.

• point of tangency

• radius

• circle

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.GPE.A.1

A SEGMENT whose ENDPOINTS are the

CENTER and a

POINT ON THE CIRCLE

• chord

• secant

• radius

Tags

CCSS.HSG.C.A.2

A SEGMENT whose

ENDPOINTS lie ON the circle

and goes through the

CENTER OF THE CIRCLE

• tangent

• radius

• chord

• diameter

Tags

CCSS.HSG.C.A.2

A SEGMENT whose ENDPOINTS lie on the circle.

(but DO NOT pass through the center)

• radius

• chord

• diameter

• secant

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.A.3

A LINE that INTERSECTS the circle at 2 points

• tangent

• secant

• chord

• line

Tags

CCSS.HSG.C.A.2

A LINE that INTERSECTS the circle

At EXACTLY 1 point

(but does not pass through the center)

• radius

• secant

• tangent

• diameter

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.A.4

The POINT

where the TANGENT LINE

TOUCHES the circle

• circle

• radius

• point of tangency

• tangent

Tags

CCSS.HSG.C.A.2