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Problems
Problem 2.1:
If a circle's radius is 4, what is its circumference?
[Solution]
Problem 2.2:
If a circle's circumference is 24π, what is its radius?
[Solution]
Problem 2.3:
A 20 degree arc is what fraction of the circumference?
[Solution]
Problem 2.4:
What is the length of the major arc pictured below? (C is the center of the
circle)
![]() Problem 2.5:
A circle has a chord of length ten. What is the minimum circumference of the
circle?
[Solution]
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