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Perimeter: grid squares and polygons

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Intros
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Lessons
  1. What is perimeter?
  2. How to find the perimeter of polygons
  3. How to find perimeter of figures with grid squares
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Examples
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Lessons
  1. Perimeter of polygons
    Calculate the perimeter of the polygon. Remember to write the units in your answer.
    1. Perimeter: Grid squares and polygons
    2. Perimeter: Grid squares and polygons
    3. Perimeter: Grid squares and polygons
  2. Perimeter by tracing the outside of grid squares
    Trace around the grid squares to find the perimeter (in centimeters)
    1. Perimeter: Grid squares and polygons
    2. Perimeter: Grid squares and polygons
    3. Perimeter: Grid squares and polygons
  3. Perimeter equations with addition or multiplication
    Fill in the blanks for the rectangle made of grid squares. Complete the equations for the perimeter.
    1. Perimeter: Grid squares and polygons
    2. Perimeter: Grid squares and polygons
    3. Perimeter: Grid squares and polygons
  4. Perimeter of shapes on grid paper
    A centimeter grid paper is shown with a figure drawn on it.
    1. What is the perimeter of the figure?
      Perimeter: Grid squares and polygons
    2. Different shapes can have the same perimeter. Draw another rectangle with the same perimeter.
      Perimeter: Grid squares and polygons
    3. Two figures with the same perimeter are shown below. Are they made out of the same number of grid squares? Explain why or why not.
      Perimeter: Grid squares and polygons
  5. Perimeter of polygons - word problems
    Use your knowledge of polygons to calculate the perimeter.
    1. What is the perimeter of a regular hexagon with 5cm on each side?
    2. What is the perimeter of a rectangle with a length of 4m and a width of 9m?
    3. If a regular octagon has a perimeter of 56mm, what is the length of each side?