Whakaoti i te =3.14*(4)^2*72/360^circ

$$= 3.14 \times ( 4 ) ^ { 2 } \times \frac { 72 } { 360 ^ { \circ } }$$

Aromātai

$$10.048$$

Ngā Upane Otinga

Tātaihia te 4 mā te pū o 2, kia riro ko 16.

$$3.14\times 16\times \frac{72}{360}$$

Whakareatia te 3.14 ki te 16, ka 50.24.

$$50.24\times \frac{72}{360}$$

Whakahekea te hautanga \frac{72}{360} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 72.

$$50.24\times \frac{1}{5}$$

Me tahuri ki tau ā-ira 50.24 ki te hautau \frac{5024}{100}. Whakahekea te hautanga \frac{5024}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.

$$\frac{1256}{25}\times \frac{1}{5}$$

Me whakarea te \frac{1256}{25} ki te \frac{1}{5} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{1256\times 1}{25\times 5}$$

Mahia ngā whakarea i roto i te hautanga \frac{1256\times 1}{25\times 5}.

$$\frac{1256}{125}$$

Tauwehe

$$\frac{157 \cdot 2 ^ {3}}{5 ^ {3}} = 10\frac{6}{125} = 10.048$$