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1960 AMC 12 Question 35

AMC12 · 1960 AMC 12

Question 35

From point $P$ outside a circle, with a circumference of $10$ units, a tangent is drawn. Also from $P$ a secant is drawn dividing the circle into unequal arcs with lengths $m$ and $n.$ It is found that $t,$ the length of the tangent, is the mean proportional between $m$ and $n.$ If $m$ and $t$ are integers, then $t$ may have the following number of values:
  1. zero
  2. one
  3. two
  4. three
  5. infinitely many