Circle Vocab Angles

An angle whose vertex (corner) is at the center of the circle.

• Major Arc

• Minor Arc

• Central Angle

• Inscribed Angle

Tags

CCSS.HSG.C.A.2

Find x. Assume segments that appear to be tangent are tangent.

• 18

• 22

• 25

• 31

Tags

CCSS.HSG.C.A.2

Which is true of a minor arc?

• It forms half a circle.

• It forms a whole circle.

• It measures greater than 180 degrees. 

• It measures less than 180 degrees.

Tags

CCSS.HSG.C.B.5

Which is true of a major arc?

• Forms half a circle.

• Forms a whole circle.

• Measures greater than 180 degrees.

• Measures less than 180 degrees.

Mathematical Equivalence

ON

Tags

CCSS.HSG.C.A.2

Find the value of x.

Mathematical Equivalence

ON

Tags

CCSS.HSG.C.A.2

Think about if the angles are equal or if they add up to 180. Solve for x. Plug it in.

Mathematical Equivalence

ON

Tags

CCSS.HSG.C.A.2

Name a minor arc

• AD

• ADB

• AB

• CD

Name a major arc.

• ABD

• BDA

• BCD

• DA

What is the measure of arc AD?

• 38

• 142

• 180

• 153

Tags

CCSS.HSG.C.B.5