Circle Basics and Tangents

Name a secant.

• BD

• DG

• HF

• AF

• Name the circle: Circle B
• Name the circle: Circle DE
• Name the circle: Circle A
• Name the circle: Circle DBC

Which of the following names a radius?

• segment AC

• segment DB

• segment AB

• segement BC

Which of the following names a diameter?

• segment AC

• segment DB

• segment AB

• segment BC

A chord is a segment that connects ___________

• the center to the endpoint

• to one point outside the circle

• a central angle

• 2 endpoints of a circle

An angle whose vertex is the center of a circle

• central angle

• inscribed angle

• minor arc

• major arc

How many common tangents do the circles have?

• 1

• 2

• 3

• 4

Match the following

• Secant

• Tangent

• Radius

• Chord

Identify all radii.

• DB, FC, BF

• FC, DF, FB

• EA, DB, FB

• CF, DF, EA

The diameter of circle L is 20 units and the diameter of circle M is 13 units and QR = 4. Find LQ.

• 16 units

• 6 units

• 14 units

• 9 units