Luas yang diarsir
Luas segi panjang-2 Luas ∆
[tex](p \times l) - \frac{1}{2} (a \times t + a \times t) \\ \\ (35 \times 30) - \frac{1}{2} (35 \times 10 + 10 \times 10) \\ \\ 1.050 - \frac{1}{2} (450) \\ \\ 1.050 - 225 \\ \\ 825 \: {cm}^{2} [/tex]
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Luas yang diarsir
Luas segi panjang-2 Luas ∆
[tex](p \times l) - \frac{1}{2} (a \times t + a \times t) \\ \\ (35 \times 30) - \frac{1}{2} (35 \times 10 + 10 \times 10) \\ \\ 1.050 - \frac{1}{2} (450) \\ \\ 1.050 - 225 \\ \\ 825 \: {cm}^{2} [/tex]