a: \(BC=\dfrac{6^2}{3}=12\left(cm\right)\)
z=12-3=9cm
\(x=\sqrt{3\cdot9}=3\sqrt{3}\left(cm\right)\)
\(y=\sqrt{9^2+27}=6\sqrt{3}\left(cm\right)\)
b: \(y=\sqrt{10^2-6^2}=8\left(cm\right)\)
\(z=\dfrac{6\cdot8}{10}=4.8\left(cm\right)\)
\(x=\dfrac{6^2}{10}=3.6\left(cm\right)\)
c: \(BC=\sqrt{7.5^2+4^2}=8.5\left(cm\right)\)
\(x=\dfrac{7.5^2}{8.5}=\dfrac{225}{34}\left(cm\right)\)
y=8,5-225/34=32/17cm
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