Tangent Line of Circles

If a line is tangent to a circle, then it is ________ to the radius drawn to the point of tangency.

• parallel

• adjacent

• supplementary

• perpendicular

Determine if a tangent line is shown in the picture.

• Yes

• No

• Note Sure

What is the value of x?

• 22

• 25

• 15

• 20

Tags

CCSS.HSG.C.A.2

Name the point of tangency of Circle C.

• Point C

• Point F

• Point E

• Point A

​ - a line in the plane of a circle that intersects the circle in exactly one point

​

• tangent

• Arc Measure

• major arc

• minor arc

• diameter

• semi circle

• tangent line

• circle

• radius

Line PQ and Line RQ are examples of

• Secant Lines

• Tangent Lines

• Outside Lines

• Tangerine Lines

A point B is 17cm away from the centre O of a circle. AB is the tangent to the circle at A. Given that AB = 15 cm, find the radius of the circle.

• 8 cm

• 9 cm

• 2 cm

• 16 cm

Tags

CCSS.HSG.C.A.2

Find the length of LK

• 24

• 20.25

• 17.5

• 12.32

Tags

CCSS.HSG.C.A.2

Using lines tangent to the circle, find the value of x.

• 57

• 137

• 47

• 257

Tags

CCSS.HSG.C.A.2

Determine if a tangent line is shown in the picture.

• Yes

• No

• Not sure