Secants and Tangents Lines to a Circle

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

What is the formula used when finding an angle formed by an intersecting secant and tangent on the circle?

• 2(Inscribed Angle)

• 2(Intercepted Arc)

What is the formula to use when solving for an exterior angle formed by 2 exterior intersecting secants, an exterior intersecting secant and tangent, or 2 exterior intersecting tangents of a circle?

• 2(Major Arc + Minor Arc)

• Major Arc - Minor Arc

• A
• B
• C
• D

Where in the intersection of the secants shown?

• Inside the circle

• Outside the circle

• On the circle

• The secants do not intersect.

Find the value of x.

• 10

• 181

• 34

• 40

Find x

• 10

• 5

• 18

• 9

Where in the intersection of the secants shown?

• Inside the circle

• Outside the circle

• On the circle

• The secants do not intersect.

Where in the intersection of the secants shown?

• Inside the circle

• Outside the circle

• On the circle

• The secants do not intersect.

Where in the intersection of the lines shown?

• Inside the circle

• Outside the circle

• On the circle

• The secants do not intersect.