# The Plemelj Construction of a Triangle: 13

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This Demonstration constructs a triangle given the length of its base , the length of the altitude from to and the difference between the angles and at and . This is not one of Plemelj's original constructions, but a new one based on his equation , where and . It is the same as The Plemelj Construction of a Triangle: 8, but the verification is different.

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Contributed by: Izidor Hafner, Nada Razpet and Marko Razpet (September 2017)

Open content licensed under CC BY-NC-SA

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## Details

For the history of this problem, references and a photograph of Plemelj's first solution, see The Plemelj Construction of a Triangle: 1.

## Permanent Citation