Math 3 - Unit 5 Review

What is this called?

• Diameter

• Secant

• Tangent Line

• Radius

What is this called?

• Diameter

• Secant

• Central Angle

• Radius

• Secant
• Diameter
• Radius
• Chord

A sector is a smaller piece of the...

• Chord

• Area

• Circumference

• Radius

This is a picture of ___________.

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

This is a picture of ___________.

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

Which formula is used to find the AREA of a SECTOR when the central angle is in degrees?

Which formula is used to find the ARC LENGTH when the central angle is in degrees?

Find the measure of arc AB.

• 17
• 34
• 68
• 146

Find the area of the shaded sector of circle O.  The radius is 6 inches and the central angle is 100°.  Express answer to the nearest tenth of a square inch.

• 9.2 sq. in.
• 10.5 sq. in.
• 31.4 sq. in.
• 38.2 sq. in.