Circle Vocab and Central Angles

• x = 160
• x = 40
• x = 80
• x = 360

Tags

CCSS.HSG.C.A.2

A line segment on the interior of a circle with both endpoints on the circle

• Radius

• Diameter

• Secant

• Chord

Find the measure of arc KG

Mathematical Equivalence

ON

Tags

CCSS.HSG.C.B.5

x=​ (a)  

y=​ (b)  

z=​ (c)  

• 90°

• 31°

• 59°

• 180°

• 62°

• 118°

Tags

CCSS.HSG.C.A.2

A central angle has its vertex at the _______.

Tags

CCSS.HSG.C.A.2

A inscribed angle has its vertex on the _______.

Organize these options into the right categories

Groups:

(a) Segments

,

(b) Arcs

,

(c) Lines (and sometimes Segments)

,

(d) Angles

• Radius

• Intercepted

• Chord

• Tangent

• Semicircle

• Central

• Inscribed

• Minor

• Major

• Secant

Label the image with the correct terminology.

b

c

d

e

a

Chord

Diameter

Tangent

Radius

Secant

Label the image with the correct terminology

b

a

Minor Arc

Major Arc

Semicircle

A minor arc has ​ (a)   180°

A major arc has​ (b)   180°

A semicircle has ​ (c)   180­°

• less than

• more than

• exactly