6.3 Tangent to Circles

6.3 Tangent to Circles

Part 2

Properties of Tangent to circles

Try to understand

Multiple Choice

How many common tangents?

• 0

• 1

• 2

• 3

• 4

Multiple Choice

How many common tangents?

• 0

• 1

• 2

• 3

• 4

Multiple Choice

How many common tangents?

• 0

• 1

• 2

• 3

• 4

Multiple Choice

How many common tangents?

• 0

• 1

• 2

• 3

• 4

Multiple Choice

What can you conclude from the picture?

• m is parallel to circle C

• m is skew to circle C

• m bisects circle C

• m is tangent to circle C

Multiple Choice

What can you conclude?

• AB and AC are not congruent.

• AB= half of AC

• AC = half of AB

• AB=AC

Multiple Choice

A tangent line intersects the circle ...

• in exactly two points

• in exactly one point

• through the center

• with the diameter

Multiple Choice

Using the tangent lines, find the value of x.

• 60

• 120

• 30

• 300

Multiple Choice

What is the value of x?

• 22

• 25

• 15

• 20

Multiple Choice

Find the length of BC.

• 2

• 3

• 9

• 14

Fill in the Blank

AC is a tangent to circle O at point C. What is the length of AC?

Multiple Select

PT and QT are tangents to the circle with center O.

Is ∠PTO = ∠QTO?

• TRUE

• FALSE

Multiple Select

PT and QT are tangents to the circle with centre O.

Is x + y = 360°?

• TRUE

• FALSE

Multiple Select

PT and QT are tangents to the circle with centre O.

Is PT = QT?

• TRUE

• FALSE

Multiple Choice

Which shows a tangent line?