A (114cm x 164cm) rectangle has perimeter of (2 x 114) + (2 x 164) = 556 cm .
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The answer is 12 cm.
The perimeter of a rectangle is calculated by adding all four sides together. In this case, the length of the rectangle is 18 cm and the width is 6 cm. To find the perimeter, you would add 18 cm (length) + 18 cm (length) + 6 cm (width) + 6 cm (width) = 48 cm. Therefore, the perimeter of the rectangle is 48 cm.
You forgot to put in the length of the rectangle's perimeter.
width = (x + 4) cm length = [(x + 4) + (x + 7)] cm Rectangle Perimeter = 2[(x + 4) + (x + 4 + x + 7)] cm Rectangle Perimeter = 2[(x + x + x) + (4 + 4 + 7)] cm Rectangle Perimeter = 2(3x + 15) cm Rectangle Perimeter = (6x + 30) cm
150cm