[tex] \sqrt{\p \times \pi \times 14 \times 14} [/tex]
Halo Halo nanti 4 * 180 persegi panjang dikali 80 km
Jawaban:
[tex] \sqrt{\pi.\pi.14.14} = \sqrt{ \frac{22}{7} \times \frac{22}{7} \times 14 \times 14} \\ = \sqrt{ \frac{22}{7} \times ( \frac{22}{7} \times 196)} \\ = \sqrt{ \frac{22}{7} \times 616} \\ = \sqrt{ 1936} \\ = 44[/tex]
Semoga membantu ya ^_^
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