10.01 Find areas using a grid
Are you ready?
Let's try this problem to review how to compare the area of shapes.
The area of two tabletops were measured by laying out newspaper sheets over them.
Victoria’s table needed $6$6 sheets of paper, and Peter’s table needed $3$3 sheets of paper.
Whose table has the smallest area?
Victoria's table
APeter's table
B
Learn
We can measure area in shapes such as squares and rectangles, but what about different shapes?
To help us measure the area of shapes like the ones pictured below, we can use square units.
In this video, we look at how to calculate the area of shapes similar to those in the picture shown.
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question 1
Find the area of the shape by counting the number of grid squares it covers.
Each grid square represents $1$1 square unit.
Learn
Sometimes we have unusual shapes but we can still work out the area of these shapes by counting the number of square units inside. We can also work out the area of triangles!
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question 2
Find the area of the shape by counting the number of grid squares it covers.
Each grid square represents $1$1 square unit.
question 3
Find the area of the shape.
$\editable{}$ units2
To find the amount of space a shape takes up, we can use a grid to count the number of unit squares that it covers.