The document discusses the calculation of area and perimeter for pig pens built by farmer Ann, providing examples of using fencing. It emphasizes the significance of understanding the area for different shapes, particularly compound shapes made of multiple rectangles or squares. Additionally, it highlights the practical applications of area calculations in real-life scenarios, such as determining the size of homes and land.

4. B O O K S H E L F
K E A L H
F O B C T S

5. A

6. 4 Pics 1 Word

9. 1 m
1 m2
How big is each pig pen?
Farmer Ann builds 2 pig-pens using fencing.
How much fencing was used for each pig pen?
Area =
Perimeter =
Area =
Perimeter =
6 m2
10 m
5 m2
10 m

10. 1 m
1 m2
the area
For every polygon (flat shape) we can find the size of…
Area =
Perimeter =
6 m2
10 m
(the surface)
& the perimeter
(the edge)
Imagine:
the space to move
Imagine:
walking around the outside

11. These are compound shapes, they are made up
of 2 or more rectangles or squares.
overlapping

13. Solution:

18. Finding the Area of a Trapezoid

34. The importance of getting the area of
complex figure helps us to realize that it
can be helpful in dealing the total area of
our houses, the total land area, and some
other objects in real life