Calculate the area of a rhombus with a side length of 6.7 cm, given only the side length.

2) Calculate the area of the following shapes, correct to one decimal place.

b) The shape is a rhombus with a side length of $6.7 \text{ cm}$.
To calculate the area of a rhombus, you need either the lengths of its diagonals or its perpendicular height. The image only provides the side length.
Therefore, the area of the rhombus cannot be calculated with the information given in the image.