Final answer:
To estimate the area of an irregular shape, use a grid and count the number of square units inside the shape. Each box in the grid represents 1 square unit. Count the squares that are covered by the shape to estimate the area.
Step-by-step explanation:
To estimate the area of the irregular shape, we can use a grid and count the number of square units inside the shape. Since each box is equal to 1 square unit, we can estimate the area by counting the number of squares that are partially or fully covered by the shape.
Here is an example:
By counting the squares, we can estimate that the area of the irregular shape is approximately 13 square units.