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21 July, 20:34

The length of a rectangle is 4cm longer than the width, and the perimeter is at least 48cm. What are the smallest possible dimensions of the rectangle

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  1. 21 July, 20:39
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    So since the length is 4+w. Then the perimeter 2 (4+w) + 2w > = 48.

    so, 8+2w+2w>=48.

    8+4w>=48

    4w>=40

    w>=10

    so, the width must be at least 10. And the smallest dimensions can be 10 x 14.
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