The perimeter of the rectangle is 1 dm 8 cm and the width is 3 cm what is its area.

The perimeter is 18 cm
Let’s find find the second side, take it for x
18 = 2 * 3 + 2x
18 = 6 + 2x
18-6 = 2x
12 = 2x
x = 6 cm equals length
The area is 6 * 3 = 18 cm square.



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