Luas daerah yang diarsir
Lsegi panjang-3/2 lingkaran
[tex] (\frac{3}{2} d \times d )- (\frac{3}{2} \times \frac{\pi}{4} \times d \times d )\\ \\ \frac{129}{400} \times d \times d \\ \\ \frac{129}{400} \times 20 \: cm \times 20 \: cm \\ \\ 129 \: {cm}^{2} [/tex]
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Luas daerah yang diarsir
Lsegi panjang-3/2 lingkaran
[tex] (\frac{3}{2} d \times d )- (\frac{3}{2} \times \frac{\pi}{4} \times d \times d )\\ \\ \frac{129}{400} \times d \times d \\ \\ \frac{129}{400} \times 20 \: cm \times 20 \: cm \\ \\ 129 \: {cm}^{2} [/tex]