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1986 AMC 12 Question 18

AMC12 · 1986 AMC 12

Question 18

A plane intersects a right circular cylinder of radius $1$ forming an ellipse. If the major axis of the ellipse is $50\%$ longer than the minor axis, the length of the major axis is
  1. $1$
  2. $\frac32$
  3. $2$
  4. $\frac94$
  5. $3$