Final answer:
Composite shapes can have straight or curved sides.
Step-by-step explanation:
The statement that is true of composite shapes is that composite shapes can have straight or curved sides. Composite shapes are formed by combining two or more simple shapes. These shapes can be polygons with straight sides or curves. For example, a composite shape can be a combination of rectangles and circles to create a unique shape with both straight and curved sides.
Learn more about Composite shapes