Proof Without Words: The Parallelogram With Maximum Perimeter for Given Diagonals Is the Rhombus
Ángel Plaza
Abstract
Ángel Plaza
Abstract
SummaryBy using the ellipse with foci at the extreme points of the shortest diagonal and the minor axis being the longest diagonal, it is proved without words that the parallelogram with maximum perimeter for given diagonals is the rhombus.
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SummaryBy using the ellipse with foci at the extreme points of the shortest diagonal and the minor axis being the longest diagonal, it is proved without words that the parallelogram with maximum perimeter for given diagonals is the rhombus.
Key concepts: Rhombus, Parallelogram, Diagonal, Perimeter, Mathematics, Ellipse, Combinatorics, Geometry