TIPS

1. Perimeter of the composite shapes is the total length around the shapes.
2. We can use measuring tapes, rulers or strings to measure the perimeter of the composite shapes;
3. The perimeter of the composite shapes can be calculated by adding all the sides of the shapes.
4. The area of the composite shapes is the amount of surface that it covers.
5. The area can be measured by counting the number of unit squares that the shape covers on a grid.

COMMON MISTAKES

1. Find the area of the rectangle 6 cm length and 2 cm breadth.
   Incorrect :
   

   Area	= 6 cm + 2 cm + 6 cm + 2 cm
   	= 16 cm

   
   
   Correct:

   Area	= 6 cm x 2 cm
   	= 12 cm2