The Story Arcs
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.