Question: 12. Show that a rectangle with given perimeter has maximum area when it is a square. (3 marks) 12. Show that a rectangle with given

12. Show that a rectangle with given perimeter has maximum area when

it is a square. (3 marks)

12. Show that a rectangle with given perimeter has maximum area when it is a square. (3 marks)

12. Show that a rectangle with given perimeter has maximum area when it is a square. (3 marks)

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