SHAH ALAM: A mathematical formula to calculate a circle’s area – pi r square – became the topic of dispute at the Altantuya Shaariibuu murder trial.
The formula, commonly used by secondary school students, turned up when chemist Shaari Desa was asked to dismantle the firing pin of a Heckler & Koch MP5 submachine gun, measure its diameter and calculate the surface area of the pin’s circular end.
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