Unit 6: Circles Review

The distance from the center of the circle to any point on the circle is called the...

• radius

• diameter

• area

• circumference

A circle has a diameter of 36 ft. What is the radius?

• 18

• 72

• 14

A line that touches a circle in just one point.

• tangent
• chord
• secant
• radius

A line that intersects the circle at exactly two points.

• radius

• secant

• tangent

• diameter

Tangent-Radius Theorem:

• tangent line and radius are parallel

• tangent line and radius are perpendicular

• tangent line and radius intersect once

• tangent line and radius never intersect

What must be the length of AB assuming AB is tangent to Circle C?

CB= 16.5 inches

AD= 65 inches

• 32 inches

• 50 inches

• 56 inches

• 36 inches

Two-Tangent Theorem: the two tangent segments are _______.

• Congruent

• Parallel

• Perpendicular

• Off-centered

AB and BC are tangent to circle D at points A and C. Find x.

• X=2

• X=4

• X=6

• X=8

AB and BC are tangent to circle D at points A and C. Find BC.

• BC=55

• BC=50

• BC= 52

• BC=51

Minor Arc... (more than 1 correct answer)

• Less than 180 degrees

• Greater than 180 degrees

• Label with 2 letters

• Label with 3 letters