1984 USAMO Problems/Problem 3

Problem

$P$ , $A$ , $B$ , $C$ , and $D$ are five distinct points in space such that $\angle APB = \angle BPC = \angle CPD = \angle DPA = \theta$ , where $\theta$ is a given acute angle. Determine the greatest and least values of $\angle APC + \angle BPD$ .

Solution

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1984 USAMO (Problems • Resources)
Preceded by Problem 2	Followed by Problem 4
1 • 2 • 3 • 4 • 5
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1984 USAMO Problems/Problem 3

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