Inscribed Angles Arc Measure and Arc Length

What is this called?

• Tangent Line

• Central Angle

• Chord

• Inscribed Angle

Solve for x. 

• 5

• 20

• 40

• 85

• A
• B
• C
• D

What is m∠ACB?

• 67.5°

• 90°

• 22.5°

• 45°

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.

If the measure of arc ABC = 210°, what is the measure of arc AC?

• 150°

• 100°

• 210°

• 105°

Find the arc length.  Leave your answer in terms of π.

• 7/4π

• 7/2π

• 1/8π

• 45π

Find arc length

• 114π/5 ft

• 2850 ft

• 95π/6 ft

• 150π/19 ft

Find the area of the dark blue sector shown at the left.  The radius of the circle is 4 units and the length of the arc (the curved edge of the sector) measures 7.85 units.  Express answer to thenearest tenth of a square unit.

• 0.3 square units

• 15.7 square units

• 19.7 square units

• 50.3 square units

Which angles are congruent?

• <ACB = <ADB

• <ADB=<AEB

• <AEB=<ACB

• <ACB = <ADB = <AEB