Measurement
Hong Kong
Stage 1 - Stage 3
Introduction to Area
Lesson
Measuring Space
Area, is defined as the space within a 2D shape.
All these shapes have the same area as they all contain 5 square units each.
As well as whole unit squares, sometimes shapes might be composed of parts of unit squares. Take this shape for example.
So this shape would have a total of $3$3 whole square units, $1$1 half a square unit and $2$2 quarter square units resulting in a total area of
$3+\frac{1}{2}+\frac{2}{4}=4$3+12+24=4 square units
Worked Examples
QUESTION 1
Find the area of the shape.
$\editable{}$ units2
QUESTION 2
If the large square has an area of $1$1 unit2, what areas do the smaller shapes have?
$1$1 unit2 $\editable{}$ unit2 $\editable{}$ unit2 $\editable{}$ unit2 $\editable{}$ unit2
QUESTION 3
Find the area of the shape.
$\editable{}$ units2