Whakaoti i te 31/2text{unitslong}*21/4

$$3 \frac { 1 } { 2 } \text { units long } \times 2 \frac { 1 } { 4 }$$

Aromātai

$$\frac{63iglostun^{2}}{8}$$

Ngā Upane Otinga

Whakareatia te n ki te n, ka n^{2}.

$$\frac{3\times 2+1}{2}un^{2}itslog\times \frac{2\times 4+1}{4}$$

Whakareatia te 3 ki te 2, ka 6.

$$\frac{6+1}{2}un^{2}itslog\times \frac{2\times 4+1}{4}$$

Tāpirihia te 6 ki te 1, ka 7.

$$\frac{7}{2}un^{2}itslog\times \frac{2\times 4+1}{4}$$

Whakareatia te \frac{7}{2} ki te i, ka \frac{7}{2}i.

$$\frac{7}{2}iun^{2}tslog\times \frac{2\times 4+1}{4}$$

Whakareatia te 2 ki te 4, ka 8.

$$\frac{7}{2}iun^{2}tslog\times \frac{8+1}{4}$$

Tāpirihia te 8 ki te 1, ka 9.

$$\frac{7}{2}iun^{2}tslog\times \frac{9}{4}$$

Whakareatia te \frac{7}{2}i ki te \frac{9}{4}, ka \frac{63}{8}i.

$$\frac{63}{8}iun^{2}tslog$$

Whakaroha

$$\frac{63iglostun^{2}}{8}$$

Ngā Upane Otinga

Whakareatia te n ki te n, ka n^{2}.

$$\frac{3\times 2+1}{2}un^{2}itslog\times \frac{2\times 4+1}{4}$$

Whakareatia te 3 ki te 2, ka 6.

$$\frac{6+1}{2}un^{2}itslog\times \frac{2\times 4+1}{4}$$

Tāpirihia te 6 ki te 1, ka 7.

$$\frac{7}{2}un^{2}itslog\times \frac{2\times 4+1}{4}$$

Whakareatia te \frac{7}{2} ki te i, ka \frac{7}{2}i.

$$\frac{7}{2}iun^{2}tslog\times \frac{2\times 4+1}{4}$$

Whakareatia te 2 ki te 4, ka 8.

$$\frac{7}{2}iun^{2}tslog\times \frac{8+1}{4}$$

Tāpirihia te 8 ki te 1, ka 9.

$$\frac{7}{2}iun^{2}tslog\times \frac{9}{4}$$

Whakareatia te \frac{7}{2}i ki te \frac{9}{4}, ka \frac{63}{8}i.

$$\frac{63}{8}iun^{2}tslog$$