Chords and Angles and Tangent to a Circle

In a circle (or congruent circles), chords that are the same distance from the center:

• are similar

• have the same name

• are congruent to each other

• are walking dead

If Circle M is congruent to Circle O, then:

• all of their central angles must be congruent

• both circles have centers named "P"

• both circles have congruent radii

• both circles have X-Box Ones

Solve for x. (Hint: Length of Tangent Lines from the Same External Point)

• 42.4

• 52

• 52.3

• 42

Find the measure of the missing angle in degrees. (Hint: Intersecting Chords)

• 79

• 57

• 22

• 83

Find the measure of the missing arc in degrees. (Hint: Intersecting Chords)

• 103

• 16

• 71

• 94

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 vocabulary term with its appropriate part of the circle.

• Point of Tangency

• Minor Arc

• Point V

• Major Arc

• Semi-Circle

• Line PR

• 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