Jawaban:
a.157
Penjelasan dengan langkah-langkah:
[tex]l = \pi \times {r}^{2} \\ 7850 = 3.14 \times {r}^{2} \\ 7850 \div 3.14 = {r}^{2} \\ 2500 = {r}^{2} \\ r = \sqrt{2500} = 50m [/tex]
[tex]k = \pi \times d \\ = 3.14 \times 100 \\ = 314m[/tex]
[tex]banyak \: pohon = 314 \div 2 = 157buah[/tex]
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Verified answer
Jawaban:
a.157
Penjelasan dengan langkah-langkah:
[tex]l = \pi \times {r}^{2} \\ 7850 = 3.14 \times {r}^{2} \\ 7850 \div 3.14 = {r}^{2} \\ 2500 = {r}^{2} \\ r = \sqrt{2500} = 50m [/tex]
[tex]k = \pi \times d \\ = 3.14 \times 100 \\ = 314m[/tex]
[tex]banyak \: pohon = 314 \div 2 = 157buah[/tex]