The Platonic Solids
The Perpendicular Bisector of a Segment
The Periodic Table
The period-index theorem for surfaces
The perimeter of a regular polygon is 63 feet
The perimeter of a regular polygon is 63 feet
The perfection of the snail
THE PENTAGON LAB
The PDF of our notes about Kant and Euclidean Geometry
The path to General Relativity
The parallel postulate, the other four and Relativity
The Parallel Postulate is Depended on the Other Axioms
The Parallel Postulate
The Pails of Water Problem You have a 5 and a 7 quart
The PAI Postulate:
The Orthocenter, Excenters, Excircles, and the Euler Line (from
The origins of proof - Plus Maths
The origins of proof - Millennium Mathematics Project
The origins of proof
The Opposite sides of a Parallelogram Theorem
the olympiad corner - Canadian Mathematical Society