Whakaoti mō b
\left\{\begin{matrix}b=\frac{2A}{h}\text{, }&h\neq 0\\b\in \mathrm{R}\text{, }&A=0\text{ and }h=0\end{matrix}\right.
Whakaoti mō A
A=\frac{bh}{2}
Tohaina
Kua tāruatia ki te papatopenga
\frac{1}{2}bh=A
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
\frac{h}{2}b=A
He hanga arowhānui tō te whārite.
\frac{2\times \frac{h}{2}b}{h}=\frac{2A}{h}
Whakawehea ngā taha e rua ki te \frac{1}{2}h.
b=\frac{2A}{h}
Mā te whakawehe ki te \frac{1}{2}h ka wetekia te whakareanga ki te \frac{1}{2}h.
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