Tangent Lines and Perimeter

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

Find the value of X

• 3

• 16

• 8

• 12

Find the length of LK

• 24

• 20.25

• 17.5

• 12.32

Find the perimeter

• 39.5

• 32.8

• 56.3

• 79.2

Find the perimeter

• 54.4

• 63

• 71

• 82.4

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

• 57

• 137

• 47

• 257

Determine if a tangent line is shown in the picture.

• Yes

• No

• Note Sure

Assume that the lines that appear to be tangent are tangent. O is the center of the circle. Find the value of x to the nearest tenth.

• 16 in

• 8 in

• 11 in

• 6 in

Find the value of X

• 8.5

• 3.6

• 7.2

• 9.2

Identify the straight lines that are tangents to the circle in the diagram. You can choose more than one answer.

• AB

• RS

• KJ

• LM

• TU