Circles Review

An arc whose measure is between 180° and 360° (a)  

• Minor Arc
• Semicircle
• Major Arc
• Central Angle

∠BAC is a ________ angle

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

• Central Angle
• Inscribed Angle
• Radius
• Sector

What is the measure of ∠AOB? (a)  

• 40°
• 80°
• 160°
• 50°

What is the measure of ∠ABC? (a)  

• 82°
• 41°
• 164°
• 64°

What is the arc length of arc XY? (a)  

• 5.5π
• 4π
• 8π
• 2π

What is the area of the shaded sector? (a)  

• 2.7π
• 5.3π
• 7.2π
• 9π

This is a picture of ___________.

What is this called? (a)  

• Tangent Line
• Secant
• Chord
• Diameter

Write the equation of a circle with center (7, 0) with radius 3. (a)  

• (x - 7)2 + y2 = 9
• x2 + (y -7)2 = 9
• (x - 7)2 + y2 = 3
• x2 + (y -7)2 = 3