Equations of Circles, Tangents and Secants

Find the measure of the missing arc.

• 70°

• 100.5°

• 201°

• 140°

In the diagram, two tangents to the circle share a common external point. Solve for the value of "x"

• 8

• 9

• 6

• 5

Find the radius r

• 2

• 3

• 4

• 5

What is the value of JT that verifies segment JT is tangent to circle O if OT = 6in and JO = 10in?

• 9.2 in

• 8 in

• 17.1 in

• 11.7 in

Find the value of x that ensures the segment that appears tangent, is in fact tangent, to circle C.

• x = 14.4

• x = 8.9

• x = 16

• x = 8

What is the measure of angle 1?

• 120

• 40

• 30

• 60

Given two secants, solve for x.

• 10°

• 20°

• 30°

• 40°

Find the measure of angle EFH.

• 61

• 65

• 114

• 130

What is line segment AB?

• External Segment

• Diameter

• Radius

• Chord

Find x.  Assume that segments that appear to be   tangent are tangent.

• 2

• 11

• 7.6

• 9