Whakaoti mō D_28
D_{28}=350
Tautapa D_28
D_{28}≔350
Tohaina
Kua tāruatia ki te papatopenga
D_{28}=\frac{28\times 25}{2}
Tangohia te 3 i te 28, ka 25.
D_{28}=\frac{700}{2}
Whakareatia te 28 ki te 25, ka 700.
D_{28}=350
Whakawehea te 700 ki te 2, kia riro ko 350.
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