Respuesta :
The shape of the cross-section in the image showing the triangular prism is: B. rectangle.
What is a Rectangle?
A rectangle is a two-dimensional shape that has two pairs of opposite sides that are congruent.
In the diagram given, the shape of the cross-section created by the plane in the triangular prism when it intersects it vertically is definitely the: B. rectangle.
Learn more about the rectangle on:
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