Circles Review

An arc whose measure is between 180° and 360°

• Minor Arc
• Semicircle
• Major Arc
• Central Angle

∠BAC is a ________ angle

• major
• central
• inscribed
• obtuse

An angle whose vertex is at the center of the circle.

• Central Angle
• Inscribed Angle
• Radius
• Sector

What is the measure of ∠AOB?

• 40°
• 80°
• 160°
• 50°

What is the measure of ∠ABC?

• 82°
• 41°
• 164°
• 64°

What is the arc length of arc XY?

• 5.5π
• 4π
• 8π
• 2π

What is the area of the shaded sector?

• 2.7π
• 5.3π
• 7.2π
• 9π

This is a picture of ___________.

• Minor Arc
• Major Arc
• Semi-Circle
• Central Angle

What is this called?

• Tangent Line

• Secant

• Chord

• Diameter

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

• (x - 7)² + y² = 9

• x² + (y -7)² = 9

• (x - 7)² + y² = 3

• x² + (y -7)² = 3