Tangent Lines Circles

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

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

• Not sure

Assume that all the lines that appear tangent are tangent. Find the perimeter

• 54

• 36

• 48

• 42

What is the value of x?

• 22

• 25

• 15

• 20

Find the value of X

• 3

• 16

• 8

• 12

Find the value of X

• 8.5

• 3.6

• 7.2

• 9.2

Is line AB tangent to the circle?

• YES

• NO
  NO

• Can't Tell
  Can't Tell

In the diagram, a tangent and a line drawn to the point of tangency form a right triangle. Solve for "?" (the length of the hypotenuse)

• 15

• 6

• -24

• 14

What is the value of x?

• A

• B

• C

• D