[tex] Luas \: \frac{3}{4} \: lingkaran \\ \\ \frac{3}{4} \times \pi \times r \times r \\ \\ \frac{3}{4} \times 3,14 \times 10 \: cm \times 10 \: cm \\ \\ 235,5 \: {cm}^{2} \: (a)[/tex]
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[tex] Luas \: \frac{3}{4} \: lingkaran \\ \\ \frac{3}{4} \times \pi \times r \times r \\ \\ \frac{3}{4} \times 3,14 \times 10 \: cm \times 10 \: cm \\ \\ 235,5 \: {cm}^{2} \: (a)[/tex]