Difference between revisions of "1960 IMO Problems/Problem 7"

(New page: ==Problem== An isosceles trapezoid with bases <math>a</math> and <math>c</math> and altitude <math>h</math> is given. a) On the axis of symmetry of this trapezoid, find all points <math>P...)
 
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a) On the axis of symmetry of this trapezoid, find all points <math>P</math> such that both legs of the trapezoid subtend right angles at <math>P</math>;
 
a) On the axis of symmetry of this trapezoid, find all points <math>P</math> such that both legs of the trapezoid subtend right angles at <math>P</math>;
  
b) Calculate the distance of <math>p</math> from either base;
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b) Calculate the distance of <math>P</math> from either base;
  
 
c) Determine under what conditions such points <math>P</math> actually exist. Discuss various cases that might arise.
 
c) Determine under what conditions such points <math>P</math> actually exist. Discuss various cases that might arise.

Revision as of 10:32, 16 February 2009

Problem

An isosceles trapezoid with bases $a$ and $c$ and altitude $h$ is given.

a) On the axis of symmetry of this trapezoid, find all points $P$ such that both legs of the trapezoid subtend right angles at $P$;

b) Calculate the distance of $P$ from either base;

c) Determine under what conditions such points $P$ actually exist. Discuss various cases that might arise.

Solution

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See Also

1960 IMO (Problems) • Resources
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Problem 6
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