The Story Arcs

The Story Arcs
Topic: Plane Geometry
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This video creatively draws the life of little Sweetie Pi, a baby ghost who needs to figure out the length of a minor arc in order to know how big he has to grow to avoid being eaten by Pacmath.

The circle shown has a diameter of 12 inches, m<ABC = 30 (The top of Pacmath's mouth being point A, the bottom being point C and the back of his mouth being point B) and AB = BC. What is the length of minor arc AC? Express your answer in terms of pi.

Common Core Standards: G-C.5
Problem #: 
77 (2016-2017)
Problem Difficulty Level: 5 [?]