Circle Angle Theorems

Find the m<CED.

• 36°

• 46°

• 55°

• 70°

Find the m<SQR.

• 42°

• 56°

• 40°

• 48°

What are the values of x and y?

• x=75°; y=93°

• x=65°;y=104°

• x=75°; y=94°

• x=65°; y=93

Determine y.

• 30

• 60

• 90

• 180

Calculate q.

• 40

• 140

• 128

• 52

Which circle theorem rule is used to find angle x?

• The angle at the circumference in a semicircle is 90°

• Inscribed angles that intersect the same arc are congruent.

• A tangent meets a radius at 90°
  

• The central angle is twice the inscribed angle of the same arc.

Find the measure of the arc GH.

• 54°

• 82°

• 144°

• 70°

What is the value of x?

• 92

• 25

• 12.5

• 105

Triangle ABC is inscribed in circle O. Line AB is a diameter, and the measure of angle ABC is 55°. What is the measure of angle BAC?

• 90^o

• 35^o

• 45^o

• 55^o

Lines AO and BO are tangent. What is the measure of BO?

• 20

• 15

• 10

• 5