Circles Arc Angles

Find the area of the shaded sector of circle O. The radius is 6 inches and the central angle is 100°. Select the CLOSEST answer.

• 20.2 in²

• 25.5 in²

• 31.4 in²

• 39.2 in²

Find the length of the arc!

• 246cm

• 24cm

• 123cm

• 260cm

Solve for the missing angle.

• 45^o

• 90^o

• 22.5^o

• 128^o

Find the measure of arc AB.

• 17

• 34

• 68

• 146

Find the measure of arc RT.

• 142

• 98

• 155

• 187

If minor arc AC = 96° , what is the measure of ∠ ABC?

• 53°

• 64°

• 72°

• 84°

1. ​ (a)   2. ​ (b)  

3. ​ (c)   4. ​ (d)   5. ​ (e)  

• Inscribed Angle

• Central Angle

• Semi-Circle

• Chord

• Minor Arc

• Major Arc

• Diameter

• Secant

• Tangent

• Radius

Find the missing angles or arcs.

Match the following

• 47

• m<2

• 104

• m<1

• 52

• arc EF

Answer explanation

arc EF = Add 58+104+94=256. Then 360 - 256 = 104

m<1 = 94/2 = 47

m<2= 104/2 = 52

Solve for x. 

• 5

• 20

• 40

• 85