Circle Rules

• x = 160
• x = 40
• x = 80
• x = 360

What is the measure of ∠PTQ?

• 100°

• 140°

• 180°

• 120°

Find the value of x

• 100

• 105

• 95

• 90

The intercepted arc of an inscribed angle  is ___________________ the measure of the inscribed angle.

• congruent to

• half

• double

• supplementary to 

inscribed angle: an angle with its vertex _____________ the circle

• at the center of

• on

The measure of an inscribed angle that intercepts a semicircle is a(n) ___________ angle.

• right

• acute

• obtuse

Find m∠PRQ.

• 39°

• 90°

• 51°

• 15°

What is the measure of angle A?

• 34°

• 180°

• 112°

• 79°

Solve for x. 

• 5

• 20

• 40

• 85

Angle R is right because

• the triangles is circumscribed and SQ is a radius

• the triangles is inscribed and SQ is a radius

• the triangles is inscribed and SQ is a diameter

• triangle QRS is inscribed