[tex] Luas \: \frac{3}{8} \: lingkaran \\ \\ \frac{3}{8} \times \pi \times r \times r \\ \\ \frac{3}{8} \times \frac{22}{7} \times 14 \: cm \times 14 \: cm \\ \\ 231 \: {cm}^{2} [/tex]
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[tex] Luas \: \frac{3}{8} \: lingkaran \\ \\ \frac{3}{8} \times \pi \times r \times r \\ \\ \frac{3}{8} \times \frac{22}{7} \times 14 \: cm \times 14 \: cm \\ \\ 231 \: {cm}^{2} [/tex]