1. Area

2. Area
Area is the amount of surface space that a flat object has.
Area is reported in the amount of square units.

3. When you measure the amount of carpet to cover the floor of a room, you measure it in square units.?
Would the area of your bedroom or the area of your house be greater? ?
You’re right! The area of your house is greater than the area of your bedroom.

4. Lets find the area of this surface if each square is equal to one foot.
Count the number of squares.
Area = 10 ft²
or 10 square feet 1 2 3 4 5 6 7 8 9 10

5. The area is equal to 9 square units.
Try this one!
Count the number of green squares to determine the area of this surface. What is the area? 1 2 3 4 5 6 7 8 9
The area is equal to 9 square units.

6. Let’s do these problems together.
Two neighbors build swimming pools. This is what the pools look like.
Which family has the pool with the bigger swimming area?
Family B
Family A

7. The area of Family A’s pool is?
9 square units.
The area of Family B’s pool is?
10 square units
Therefore, Family B has the pool with
the bigger swimming area.
Family B
Family A

8. How can we find the area of a shape without
counting square units?
What formula could we come up with?
length
Area = length x width
width

9. Now work out the area of these rectangles.
They are not drawn to scale.
7cm
5cm
35cm2
5cm
20cm2
4cm
9cm
36cm2
12.5cm
4cm
2cm
25cm2