formula: Sqrt(l^2 + w^2 + h^2) = d^2
ex: l=2, w=3, h=4
Sqrt(2^2 + 3^2 + 4^2) = d^2
Sqrt(4 + 9 + 16) = d^2
Sqrt(29) = d^2
5.39 = d
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It is a rectangle.
Select any vertex.There are three faces that meet at that vertex. Find the vertex at which the other three faces meet. The line joining these two vertices is the principal diagonal of the rectangular prism.
Draw a straight line segment connecting two opposite corners of one of the rectangular faces (a diagonal).
Divide the shapes, so you're left with a triangular prism, and a rectangular prism. Calculate the slope of the triangle as per usual.
Rectangular prism = 6Triangular prism = 5 Triangular pyramid = 4 Rectangular prism: it is still 6 Rectangular pyramid = 5.