\(AH=\sqrt{AB^2-BH^2}=12\left(cm\right)\)
\(CH=\dfrac{AH^2}{BH}=\dfrac{12^2}{9}=16\left(cm\right)\)
BC=BH+CH=25(cm)
\(AC=\sqrt{BC^2-AB^2}=20\left(cm\right)\)
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