Warmup: Circles Unit Review

What formula do you use for finding segment lengths when they intersect inside the circle?

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What formula to you use to find segment lengths in a circle set up with two secants?

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What formula do you use to find segment lengths in a circle with a tangent and a secant?

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What formula would you use to solve for the measure of Angle A?

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What is the measure of ∠PTQ?

• 100°
• 140°
• 180°
• 120°

Find x. Assume that segments that appear to be tangent are tangent.

• 11.2

• 18.0

• 25.0

• 30.0

Solve for x.

• x=32

• x=42

• x=52

• x=52.3

If the measure of arc ABC = 210°, what is the measure of ∠AOC?

• 150°
• 100°
• 210°
• 105°

Match the following part of the circle with its correct label.

• Center

• Chord

• Diameter

• Tangent Line

• Point S

• Radius

What is the part of the circle highlighted in red called?

• semi-circle arc
• major arc
• minor arc
• sector