Unit 6 Quiz 1

A tangent line intersects a circle at exactly __________ point, called the point of tangency.

• one

• two

• three

• zero

A line is tangent to a circle if and only if it is ____________________ to a __________ drawn to the point of tangency.

• perpendicular, radius

• parallel, diameter

• tangent, chord

• equal, secant

Determine if AB is tangent to circle P.

• True

• False

Determine if AB is tangent to circle P.

• True

• False

If JK is tangent to circle L, find x. (Refer to the diagram with triangle JKL, JL=7, LK=19, JK=x)

• x = 20

• x = 12

• x = 26

• x = 15

If JK is tangent to circle L, find x. (Refer to the diagram with triangle JKL, JL=10, LK=24, JK=x)

• x = 26

• x = 20

• x = 16

• x = 30

If JK is tangent to circle L, find x. (Refer to the diagram with triangle JKL, JL=11, LK=25, JK=x)

If JK is tangent to circle L, find x. (Refer to the diagram with triangle JKL, JL=3.5, LK=6.4, JK=x)

• x = 7.3

• x = 5.2

• x = 4.1

• x = 8.6

If JK is tangent to circle L, find x. (Refer to the diagram with triangle JKL, JL=7, LK=25, JK=x)

• x = 24

• x = 18

• x = 32

• x = 20

In the given circle, if LJ = 20 and LK = 10, find x. (Assume that segments that appear to be tangent are tangent.)

• x = 10

• x = 5

• x = 15

• x = 20