Identifying Tangents and Secants

A line that touches (intersects) the circle only once from the outside.

• Secant

• Chord

• Tangent

• Line

Select the tangent in the image

• Arc AB

• Segment LY

• Point L

• Segment MN

Which is a point of tangency?

• K

• L

• H

• J  

Which theorem states that a radius of a circle drawn to a point of tangency of a tangent line is perpendicular to the line?

• Tangent Radius Theorem

• Perpendicular Bisector Theorem (circles)

• Diameter Bisector Theorem

• Converse of the Diameter Bisector Theorem

• 1) 32

• 2) 48

• 3) 52

• 4) 38

Answer explanation

The radius is 14 and CD = 22. How long is AE?

• 14

• 17.80

• 11

• 8.67

Find the length of CF.

• 8

• 4

• 3

• 6

Where in the intersection of the secants shown?

• Inside the circle

• Outside the circle

• On the circle

• The secants do not intersect.

Find x

• 10

• 5

• 18

• 9

The angle between two tangents or two secants a tangent and a secant from an external point to a circle, is ____ the ____ of the intercepted arcs.

• sum of, half

• two times, length

• half , difference

• half , sum