Åk 6–9
  • Start
  • 1. Welcome to Length
  • 2. Measurements and Units
  • 3. Perimeter
  • 4. Unit Conversion
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    English/Svenska
    3.4 Exercise - Perimeter
    1. Rectangle
     
     

    Calculate the rectangle’s perimeter.
       
     
    		 
    2. Square
     
     

    Calculate the square’s perimeter.
       
     
    		 
    3. Isosceles Triangle
     
     

    Calculate the triangles perimeter.
     
     
    		 
    4. Equilateral Triangle
     
      What is the sum of the sides of the triangle (s)?
     
     
    		 
    5. Hexagon
     
     

    A hexagon’s sides are equally long. Calculate the perimeter.

     
     
    		 
    6. Rectangle
     
      The rectangles width is 30 m and the perimeter is 100 m. Calculate the height (h).
     
     
    		 
    7. Square
     
     

    The square’s perimeter is 140 m. Calculate the side (s).
     
     
    		 
    8. Circle
     
     

    The circle has a diameter of 20 cm.  Calculate the circumference.
     
     
    		 
    9. Circle
     
     

    The circle has a radius of 12 cm. Calculate the circumference.
     
     
    		 
    10. Circle
     
     

    The circle has a circumference of 239 cm. Calculate the radius.