Find the area of each figure. 1. A rectangle with sides 7 mm and 4 mm. 2. A square grid.

The area $A$ of a rectangle is given by

$$A = l \times w,$$

where $l$ is the length and $w$ is the width.

$l = 7$ mm and $w = 4$ mm.

Substitute the values:

$$A = 7~\text{mm} \times 4~\text{mm} = 28~\text{square mm}.$$

28

The area $A$ of a square is given by

$$A = s^2,$$

where $s$ is the side length.

$s = 2$ mm.

Substitute the value:

$$A = (2~\text{mm})^2 = 4~\text{square mm}.$$

4