[email protected] wrote:
In a message dated 2/19/2009 11:41:04 A.M. Pacific Standard Time,
[email protected] writes:
Oh, c'mon now. Next thing you'll be telling us that a square is a
rhombus, or a trapezoid.
I (somewhat) hate adding to this pedantism, but a square can be
accurately called
- A rectangle with equal-length sides
- A rhombus with 90 degree corners
- A trapezoid that has (the required) two parallel sides, as well as two
more (optionally) parallel sides.[1]
[1] Possibly not, as sometimes, the definition of a trapezoid requires
*exactly* two parallel sides, not *at least* two parallel sides.
Characteristics being sufficient does not mean necessary nor vice
versa.
:-)
-Cory
========
My geometry teacher defined (described) a trapezoid as having a top and
base parallel to each other and
two other sides which are not parallell-- a pyramid with the
pointiness lopped off... to clarify it further... that is to distinguish
it from a rectangle.
I stink in math (arithmetic) - but I was good in geometry.
ann
Hey, frank? You reading this thread?
If this doesn't qualify as intelligent discussion, I don't know what does.
Marnie ;-) Me, all over my head, HS geometry was long ago and far away.
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