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A square tile has side 20 cm. A floor border is made by laying such tiles edge to edge along a straight line.
If 9 tiles are laid in a row, what is the perimeter of the long rectangle formed?

Class 6Perimeter of ShapesMensuration
  • A360 cm
  • B400 cm
  • C200 cm
  • D760 cm

Step-by-Step Solution

Length = cm, breadth = 20 cm. Perimeter = cm.
Answer: B) 400 cm

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