exam Maths Puzzle Numerical Ability

I need help with two different problems both # 58 though, but in different sections of chapter 9. Thanks so much!! :o)

1st.) Geometry. Find the area of the rectangle shown in th

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I would really appreciate help on this equation. Thank you.

The length of a rectangle is 1 cm longer than its width. If the diagonal of the rectangle is 4 cm, what are the dimensions (the length and the width) of the rectangle?
The length of a rectangle is 2in. more than twice it's width. If the perimeter of the rectangle is 52in., find the width of the rectangle.