Lines and Circles

Solve for x. Assume that lines which appear to be tangent are tangent.

• 8

• 2.44

• -2.44

• -8

AD and AB are tangent lines. Solve for x

• 5

• -3

• -5

• 3

Determine the value of x by applying the Tangent-Secant Exterior Angle Measure Theorem.

• 204

• 102

• 58

• 122

Determine if Line AB is tangent to the circle

• Yes

• No

Find the segment length indicated. Assume that lines which appear to be tangent are tangent

• 9.4

• 12.5

• 7.5

• 88.3

Determine the value of x by applying the Tangent-Secant Exterior Angle Measure Theorem.

• 94

• 188

• 47

• 93.5

Determine the value of x by applying the Tangent-Secant Exterior Angle Measure Theorem.

• 102

• 51

• 140

• 89

A _____ is a segment whose endpoints lie on a circle.

• Secant

• Tangent

• point of tangency

• Chord

A _____ is a line in the same plane as a circle that intersects it at exactly one point. 

• Tangent

• Chord

• Secant

• Point of Tangency

A____ is a line that intersects a circle at two points.

• Chord

• Secant

• Tangent

• radius