Åk 6–9
 
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.