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2017 Polish Junior Math Olympiad First Round P6

Source: 2017 Polish Junior Math Olympiad First Round

May 23, 2023
3D geometrygeometry

Problem Statement

The base of the pyramid ABCDABCD is an equilateral triangle ABCABC with side length 11. Additionally, ∠ADB=∠BDC=∠CDA=90∘ .\angle ADB=\angle BDC=\angle CDA=90^\circ\,. Calculate the volume of pyramid ABCDABCD.
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