The shape of the cross-section for a square pyramid sliced perpendicular to its base but not through its vertex is a trapezoid.
A pyramid is a three dimensional shape (have length, width and height) with a polygon face and lateral faces which are triangular.
A square pyramid have a square base and triangular lateral faces.
The shape of the cross-section for a square pyramid sliced perpendicular to its base but not through its vertex is a trapezoid.
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