five equal squares are placed side by side to make a single rectangle. the perimeter of rectangle so formed is 276 cm. what is the area of a square used?
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Let the length of each square be x.
The length of the rectangle formed is 5x
And its width is x.
Perimeter = 2(x + 5x)
Perimeter = 2x + 10x = 12x
12x = 276
x = 276/12
x = 23 cm
The squares are each of side 23 cm
The area of each square is :
23 × 23 = 529
= 529 cm²
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