See also the 3D and higher Browse Middle School Definitions
Stars indicate particularly interesting answers or good places
to begin browsing. - Pentagram [12/08/2001] Is a five-pointed
star on a flag a decagon? Or just five triangles? - Percent
Greater Than vs. Increased [11/22/2002] Is there a difference
between the following statements? My profits are 200% greater
than they were last year; My profits from last year have -
Percent Increase and "Increase by a Factor of ..." [08/01/2006]
If we start with 1 apple today and tomorrow have 2 apples, then
we have a 100 percent increase. But can't I also say there was
an increase by a factor of 2? - Perfect Numbers [08/14/1997]
What is the highest perfect number that has been found? How many
perfect numbers are there? What are they? - Perfect Square:
Definition [10/24/1999] What is a perfect square? - Perimeter of
an Oval [04/08/1999] What is the perimeter of an oval called? -
pH Definition [10/20/2001] What is the 'p' in pH? - Phi
[05/18/1997] What is phi? - Point