Whakaoti i te 2*90^circ+(11-2)*120^circ=(277-4)*90^circ

$$2 \times 90 ^ { \circ } + ( 11 - 2 ) \times 120 ^ { \circ } = ( 277 - 4 ) \times 90 ^ { \circ }$$

Manatoko

Ngā Upane Otinga

Whakareatia te 2 ki te 90, ka 180.

$$180+\left(11-2\right)\times 120=\left(277-4\right)\times 90$$

Tangohia te 2 i te 11, ka 9.

$$180+9\times 120=\left(277-4\right)\times 90$$

Whakareatia te 9 ki te 120, ka 1080.

$$180+1080=\left(277-4\right)\times 90$$

Tāpirihia te 180 ki te 1080, ka 1260.

$$1260=\left(277-4\right)\times 90$$

Tangohia te 4 i te 277, ka 273.

$$1260=273\times 90$$

Whakareatia te 273 ki te 90, ka 24570.

$$1260=24570$$

Whakatauritea te 1260 me te 24570.

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