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Yomjikelezo iparallelogram, iingcingo sokubala ifomula

Yomjikelezo iparallelogram, iingcingo ifomula sokubala ikuvumela ukuba ufumane obungama iparallelogram, nge formula, usebenzisa ubude macala ipharalelogramu.
a:   b:  

Umjikelezo logramu

Parallelogram yi Ikwadrilatherali kunye ngambini ezimbini kumacala ngaxeshanye. Ifomula odonga logramu: P=2(a+b),
apho, b - emacaleni logramu