Part one :-
In this part we will find area of small rectangle that is white in colour.
Given :-
- Length = 4 (unit)
- Breadth = 5 (unit)
To find :-
We know :-
- Area of rectangle 1= Length × Breadth
- Area of rectangle 1= 4 × 5
- Area of rectangle 1 = 20 (unit)²
Part two :-
In this part we will find are of big rectangle
Given :-
- Breadth = 4 + 2
- Breadth = 6 (unit)
- Length = 7 + 5
- Length = 12 (unit)
To find :-
We know :-
- Area of rectangle 2 = Length × Breadth
- Area of rectangle 2 = 6 × 12
- Area of rectangle 2 = 72
Part 3:-
- Total Area = Area of rectangle 2 - Area of rectangle 1