The ratio between the perimeter and the breath of a rectangle is 5:1.if the area of the rectangle is 216 sq.cm, what is the lenght of the rectangle?
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Let the width be x then the Perimeter will be 5x
The length of the rectangle will be :
5x - 2x = 3x
The area of the rectangle is :
3x × x = 3x²
3x² = 216
x² = 72
x = 8.49
The length is :
3 × 8.49 = 25.47
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