Unit 7 Review: Circles

Name the radius. Select all that apply.

• QT

• QS

• PS

• RT

• TS

Name the diameter.

• QT

• QS

• PS

• RT

Name a chord that is not a diameter.

• RT

• QT

• QS

• PS

Name a central angle. Select all that apply.

• Angle PSQ

• Angle QTR

• Angle RTS

• Angle PSR

Find the length of the bold arc.Leave pi in your answer.

• 5688π ft
• 15.8π ft
• 150.4π ft
• 54,150 ft

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

• 7/4π
• 7/2π
• 1/8π
• 45π

What is the measure of ACD in degrees?

• 317

• 331

• 133

• 270

In the equation (x-3)²+(y-2)²=16, the center of the circle is...

• (3,2)
• (-3, -2)
• (-2, -3)
• (2, 3)

In the equation (x-4)²+(y-3)²=25, the radius is

• 4
• 3
• 5
• 25

In the equation (x+2)²+(y-3)²=4, the center of the circle is at...

• (-2, 3)
• (-3, 2)
• (2, -3)
• (3, -2)