Parts of Circles and Tangents to Circles

• perpendicular

• parallel

• secant

• diameter

• 4

• 2.5

• 4.5

• Not enough information

In the diagram, is \overline{CB} tangent to circle A? Explain.

• \overline{CB} is not a tangent because \(13^2+27^2\ne30^2\)

• \(13^2+27^2\approx30^2\) is a tangent because \(13^2+27^2\approx30^2\)

• \(null\) is a tangent because \(13^2+27^2=30^2\)

• \(null\) is not a tangent because \(13^2+27^2=30^2\)

The diameter of the circle is best represented by...

The radius of the circle is best represented by...

The chord of the circle is best represented by...

The Point of Tangency of the circle is best represented by...

• Point C

• Point G

• Point D

• Point E

The Secant of the circle is best represented by...

line that intersects a circle at exactly one point

• secant

• circle

• chord

• tangent

Two tangents CD and CB intersect circle A. Find the length of the tangent segment BC.

• 2

• 3

• 9

• 14