Arc Length, Radius and Central Angles

• A
• B
• C
• D

Solve for x.

• x = 6.45

• x = 8

• x = 12.6

• x = 7

What is the measure of arc AB?

• 140

• 142

• 180

• 153

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.

What is this called?

• Diameter

• Secant

• Central Angle

• Radius

The radius is ___________ the length of the diameter.

• twice

• half

• three times

• equal to

• A

• B

• C

• D

• A

• B

• C

• D

Determine the measure of Arc BA.

• A

• B

• C

• D

Solve for x. 

• 5

• 20

• 40

• 85