Pakai Teorema Phytagoras.
AB² = AC² + BC²
(15 cm)² = (12 cm)² + BC²
225 cm² = 144 cm² + BC²
225 - 144 cm² = BC²
81 cm² = BC²
√(81 cm²) = BC
9 cm = BC
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Pakai Teorema Phytagoras.
AB² = AC² + BC²
(15 cm)² = (12 cm)² + BC²
225 cm² = 144 cm² + BC²
225 - 144 cm² = BC²
81 cm² = BC²
√(81 cm²) = BC
9 cm = BC