at a 90 degree angle
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The cross-sectional area of a concrete slab is the total area of the slab when viewed perpendicular to its length and width. To calculate the cross-sectional area, you multiply the length of the slab by the width of the slab. This measurement is crucial for determining the amount of concrete needed for a project and for ensuring the structural integrity of the slab.
A cross has 4 angles
Not a right cross-section.
Sounds like a Celtic Cross.
The cross section can be a triangle, rectangle or a hexagon.