Do perimeter and area determine a triangle?
SMRTR summary
Triangles with the same perimeter and area are not necessarily similar. This misconception is disproven by counterexamples, such as the triangles with sides (20, 21, 29) and (17, 25, 28), which both have perimeter 70 and area 210 but different shapes.
SMRTR provides this summary for quick context. The original article belongs to John D. Cook.
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