If one side of the rectangle is increased by 1 m 30 cm, then the second side will also increase by 1 m 30 cm, since in a rectangular figure two parallel sides are the same.
This means that together the two sides of the rectangle will increase by:
1 m 30 cm + 1 m 30 cm = 2 m 60 cm.
Next, remember that the perimeter of a rectangle is the sum of all four of its sides.
Therefore, the perimeter of the rectangular shape will also increase by 2 m 60 cm.
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