tolong dijawab buat yg bisa mtk:)
Panjang Jari - Jari Taman
[tex] \: [/tex]
[tex]\small{\begin{gathered}\begin{aligned} \sf \pi {r}^{2} &= \sf Luas\\ \sf \frac{22}{7} \times {r}^{2} &= 616 \\ \sf {r}^{2} &= 616 \div \frac{22}{7} \\ \sf {r}^{2} &= \sf 616 \times \frac{7}{22} \\ \sf {r}^{2} &= 196 \\ \sf r& = \sqrt{196} \\ \sf r & = 14 \: \sf cm\end{aligned}\end{gathered}}[/tex]
[tex] \: [/tex]
Penyelesaian :
L = Οr²
616 = 22/7 × r²
r² = 616 ÷ 22/7
r² = 616 × 7/22
r² = √196
r² = √14²
r = 14 dm (opsi b)
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