Area and Its Boundary – CBSE Notes for Class 5 Maths
Area of rectangle = Length x Breadth
Perimeter = 2 (length + breadth)
Area of square = Side x Side
Perimeter = 4 x Side
You can find the area of rectangle and square by splitting them into small boxes of 1 square cm.
Area of irregular shape can be obtained by counting the number of complete, half and more than half squares.