Circles Part I

Find the exact circumference of a circle if it circumscribes a right triangle with legs 12 in and 5 in.

• 12π
• 13π
• 26π
• 10π

What is the measure of arc WYZ?

• 231
• 255
• 168
• 200

Tags

CCSS.HSG.C.A.2

What is the measure of arc WZ?

• 51
• 129
• 102
• 258

Use chords to solve for x

• x = 3 cm
• x = 4 cm
• x = 5 cm
• x = 6 cm

Tags

CCSS.HSG.C.A.2

Use chords to solve for x

• x = 35^o
• x = 50^o
• x = 70^o
• x = 140^o

Tags

CCSS.HSG.C.A.2

A chord is 3 cm from the center in a circle with diameter 10 cm.  Find the length of the chord.

• x = 5 cm
• x = 4 cm
• x = 8 cm
• x = 10 cm

FIND THE ARC LENGTH OF THE BOLDED ARC

• A
• B
• C
• D

Tags

CCSS.HSG.C.B.5

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

• 7/4π
• 7/2π
• 1/8π
• 45π

How many radians does a circle have?

•   360 degrees
• 2π radians
• π radians
• ^{2 radians}

Convert 150⁰ to radians

• 5π/6
• 3π/4
• 7π/6
• 2π/3