Phytagoras
BC² = AB² - AC²
BC² = 15² - 12²
BC² = 225 - 144
BC² = 81
[tex] BC = \sqrt{81} \\ BC = 9cm[/tex]
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Phytagoras
BC² = AB² - AC²
BC² = 15² - 12²
BC² = 225 - 144
BC² = 81
[tex] BC = \sqrt{81} \\ BC = 9cm[/tex]