perplexus.info :: Geometry : Perpendicular edge of tetrahedron

Perpendicular edge of tetrahedron (Posted on 2021-02-02)

Let ABCD be a tetrahedron with ∠BAD = 60, ∠BAC = 40, ∠ABD = 80, ∠ABC = 70. Prove that the lines AB and CD are perpendicular.

No Solution Yet Submitted by Danish Ahmed Khan

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Posted by Hempstrol on 2021-02-03 20:27:17

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