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Puzzles involving various geometric shapes, in a flat plane and in three-dimensional space.

Latest: Gold-in pyramid Rating: 5.00

A right pyramid has a unit square base ABCD and vertex V. Its height is 1 unit.

Points E and F are on CV and DV respectively such that ABEF is a plane section that splits the pyramid into two pieces of equal volume.

Find the length EF.

Submitted on 2020-10-06 by Jer

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