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Comparing an Archimedean with a logarithmic spiral, the Archimedean form has turns that are

  • A.evenly spaced radially
  • B.spaced ever more widely outward
  • C.spaced ever more closely outward
  • D.coincident with one another

Answer: A

Correct answer: evenly spaced radially

Because the radius grows in proportion to the angle, each complete turn adds the same amount and successive turns lie the same distance apart. In a logarithmic spiral each turn multiplies the radius by a constant factor, so the spacing widens continuously as the curve grows outward.

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