
doi: 10.2307/3609131
Starting with any triangle Δ ≡ ABC , let Δ 1 ≡ A 1 B 1 C 1 be its pedal, Δ 2 ≡ A 2 B 2 C 2 the pedal of Δ 1 and so on indefinitely Since the circumradius R n of Δ n is equal to 1/2 R n-1 , we may expect a steady contraction towards some definite limiting point. It is proposed to inquire into the position of this point.
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