Whakaoti i te 66=2*22/7r

$$66 = 2 \times \frac { 22 } { 7 } r$$

Whakaoti mō r

$$r = \frac{21}{2} = 10\frac{1}{2} = 10.5$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Tuhia te 2\times \frac{22}{7} hei hautanga kotahi.

$$66=\frac{2\times 22}{7}r$$

Whakareatia te 2 ki te 22, ka 44.

$$66=\frac{44}{7}r$$

Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.

$$\frac{44}{7}r=66$$

Me whakarea ngā taha e rua ki te \frac{7}{44}, te tau utu o \frac{44}{7}.

$$r=66\times \frac{7}{44}$$

Tuhia te 66\times \frac{7}{44} hei hautanga kotahi.

$$r=\frac{66\times 7}{44}$$

Whakareatia te 66 ki te 7, ka 462.

$$r=\frac{462}{44}$$

Whakahekea te hautanga \frac{462}{44} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 22.

$$r=\frac{21}{2}$$