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E18. A locus related to a rectangle

This problem is related to my earlier E16.

Let ABCD be a rectangle. Find the locus of all points P such at PA + PC = PB + PD.

1 comment:

Anonymous said...

Hello.

I have a similar blog, and I have no visitors.
I think that there is a real problem with the
student's first exposure to mathematics.
As a semi-retired mathematics teacher/professor,
I find I am too often trying to "fix" my students
instead of being able to teach them.
Yes, to formative assessment, yes to using assessment
to drive what you teach, yes to small chunks, etc.
Maria

July 21, 2010 at 9:59 AM

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