The opposite sides of a trapezium are parallel.

Answer

**Step-by-Step Solution:**

1. **Understanding the Definition of a Trapezium:**
- A trapezium (or trapezoid) is defined as a quadrilateral with at least one pair of opposite sides that are parallel.

2. **Identifying the Sides of the Trapezium:**
- Let's label the trapezium as ABCD. In this trapezium, we can identify the sides: AB, BC, CD, and DA.

3. **Analyzing the Parallel Sides:**
- In trapezium ABCD, we need to check which sides are parallel. According to the definition, one pair of opposite sides must be parallel.
- For example, if AB is parallel to CD, then these two sides are the parallel sides of the trapezium.

4. **Checking the Other Pair of Sides:**
- Now, we check the other pair of sides, which are AD and BC. In a trapezium, these sides are not parallel.

5. **Conclusion:**
- Since only one pair of opposite sides (AB and CD) is parallel, the statement "the opposite sides of a trapezium are parallel" is false. Only one pair of opposite sides is parallel in a trapezium.

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