Tangent Lines of 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

Tags

CCSS.HSG.C.A.2

Find the length of LK

• 24

• 20.25

• 17.5

• 12.32

Tags

CCSS.HSG.C.A.2

The radius of a circle is

• The measurement from the center of a circle to an edge of the circle.
• The measurement around the circle
• The measurement from and edge of the circle to another edge through the center
• A line perpendicular to the diameter of the circle

Tags

CCSS.HSG.CO.A.1

Which best describes segment AB?

• chord
• secant
• tangent
• diameter

Tags

CCSS.HSG.C.A.2

Which best describes segment AB?

• chord
• secant
• tangent
• diameter

Tags

CCSS.HSG.C.A.2

A line segment that passes through the center of a circle, connecting two points on a circle is called ________________.

• diameter
• radius
• circumference
• area

Tags

CCSS.HSG.C.A.2

CCSS.HSG.CO.A.1

What is the diameter?

• 8
• 16
• 10
• 4

Tags

CCSS.7.G.B.4

Is line AB tangent to the circle?

• YES
• NO
  NO
• Can't Tell
  Can't Tell

Tags

CCSS.HSG.C.A.2

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

Tags

CCSS.HSG.C.A.2

A tangent line intersects the circle ...

• in exactly two points

• in exactly one point

• through the center

• with the diameter

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.A.4