Circle Chords, Arcs, Central Angles, Inscribed Angles

Find x.  Assume that segments that appear to be   tangent are tangent.

• 2
• 11
• 7.6
• 9

In a circle (or congruent circles), congruent central angles:

• are 60 degrees
• have congruent points
• have congruent arcs
• spell out the word "dracula"

• A
• B
• C
• D

• A
• B
• C
• D

• A
• B
• C
• D

Find x

• 10
• 5
• 18
• 9

Use chords to solve for x

• x = 3 cm
• x = 4 cm
• x = 5 cm
• x = 6 cm

• A
• B
• C
• D

• A
• B
• C
• D

• A
• B
• C
• D