Ah, the L-shaped lamina — I remember this from the JEE coaching notes. You split the L-shape into two rectangles, find the centre of mass for each, then use the weighted average formula with their areas as weights. But beta, in my shop, I see it differently: when I cut a chart paper for a student’s project, the centre of mass is not in the formula but in the careful fold of the paper, balancing it on my finger like I balance household accounts. All this practice feels necessary, yet my real calculations are for my son’s fees — that weight no formula can truly measure.
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