Question 111943

Question 111943

A solid rectangular block has a square base of side \(x\) cm and height of \(y\) cm. The total surface area of the rectangular block is \(90\)cm\(^{2}\) and the total length of the \(12\) edges is \(48\)cm. Show that \({{x}^{2}}-8x+15=0\) and find the possible values of \(x\) and of \(y\).

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Answer:\(x=5,y=2\); \(x=3,y=6\)

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