Area

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

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.

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

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.

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

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

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

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