Circles, Chords, Tangents, Angles, Arcs

What is the difference between a tangent line and a secant line?

• A secant intersects the circle twice; a tangent touches the circle once

• A tangent intersects the circle twice; a secant touches the circle once

• A secant goes through the center of the circle; a tangent does not

• A secant is outside the circle; a tangent is inside the circle

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

• Chord

• Radius

• Center

• Point S

• Tangent Line

• Diameter

Match the following vocabulary term with its appropriate part of the circle.

• Line PR

• Major Arc

• Point V

• Minor Arc

• Semi-Circle

• Point of Tangency

• Secant Line

Find the measure of the missing angle. (Hint: Central Angles)

• 60

• 310

• 155

• 50

What is the formula to use when solving for an intercepted arc of an inscribed angle?

• Equal to the Inscribed Angle

• 2(Inscribed Angle)

What is the measure of the missing angle in degrees? (Hint: Inscribed Angle)

• 102

• 51

• 204

• 40

If an inscribed angle intercepts a diameter, then it is a(n) _ angle.

• Obtuse

• Right

• Acute

If 2 inscribed angles intercept the same arc, they are _.

• Congruent

• Supplementary

• Complimentary

Find the measure of the missing angle in degrees. (Hint: Overlapping Arcs and Inscribed Angles)

• 41

• 37

• 82

• 164

What is the formula to use when solving for a segment length of intersecting chords in a circle?

• ab=cd

• a(a+b)=c(c+d)

• a+b=c+d