Question: i need help explaining how to solve this 1. Calculate arc length of curves. a. Calculate the circumference of a circle of radius r using

i need help explaining how to solve this

1. Calculate arc length of curves. a. Calculate the circumference of a circle of radius r using what you learned in this class about length of curves. b. Find the exact length of the spiral defined by r(t) = on the interval [0, 27]

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