Length and perimeter

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Length and perimeter

• Decide, with an example, whether these statements
  are true or false.
• To convert a measurement from centimetres to
  millimetres, just add a zero to the end of the
  number.
• Squares are the only shapes that have four equal
  sides.
• All squares are rectangles.
• Only rectangles have opposite sides the same
  length.
• The square is the only four-sided shape with four
  equal sides and four equal angles.
• Three-digit numbers are always larger than
  two-digit numbers.