Whakaoti i te 1/2*6*4.5+1/2*10*12.5

$$\frac{ 1 }{ 2 } \times 6 \times 4.5+ \frac{ 1 }{ 2 } \times 10 \times 12.5$$

Aromātai

$$76$$

Ngā Upane Otinga

Whakareatia te \frac{1}{2} ki te 6, ka \frac{6}{2}.

$$\frac{6}{2}\times 4.5+\frac{1}{2}\times 10\times 12.5$$

Whakawehea te 6 ki te 2, kia riro ko 3.

$$3\times 4.5+\frac{1}{2}\times 10\times 12.5$$

Whakareatia te 3 ki te 4.5, ka 13.5.

$$13.5+\frac{1}{2}\times 10\times 12.5$$

Whakareatia te \frac{1}{2} ki te 10, ka \frac{10}{2}.

$$13.5+\frac{10}{2}\times 12.5$$

Whakawehea te 10 ki te 2, kia riro ko 5.

$$13.5+5\times 12.5$$

Whakareatia te 5 ki te 12.5, ka 62.5.

$$13.5+62.5$$

Tāpirihia te 13.5 ki te 62.5, ka 76.

$$76$$

Tauwehe

$$19\times 2^{2}$$