Mathematics, 16.12.2021 02:10 AlmightyThadd

Here is a sketch of a Pratt truss, patented in 1844 by two Boston railway engineers, Caleb Pratt and his son Thomas Willis Pratt. Name two triangles from the Pratt truss in the illustration that you would expect to be congruent.

Here is a sketch of a Pratt truss, patented in 1844 by two Boston railway engineers, Caleb Pratt an

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Here is a sketch of a Pratt truss, patented in 1844 by two Boston railway engineers, Caleb Pratt and...

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