Secant Tangent Chord Angles

What is x?

• 15

• 23

• 2

• 92

Find the radius r

• 2

• 3

• 4

• 5

In the diagram, TP and TQ are tangents to circle O. Determine the value of x. (Note the angles with single arcs are not necessarily congruent in this diagram.)

• 70

• 110

• 140

• 90

What do we call the red line?

• Chord

• Arc

• Diameter

• Segment

How many chords are in the figure?

• 1

• 2

• 3

• 0

Definition of a chord

• a line that stretches across the circle in any type of length, but has to be in a straight line.

• the dot that's located in the middle of a circle.

Why is angle OAB =90^o ?

• tangents to circle

• sum of angles in quadrilateral

• tangents to circle from external point

• line from external point of tangents bisect angle formed between radius of circle

Why is angle BAC =90⁰ ?

• tangents to circle

• tangents to circle from external point

• right angle in semi-circle

• angles in same segment

Find the measure of angle MNQ.

• 89

• 45

• 158

• 22

Solve for x.

• 29

• 33

• 41.5

• 50