Which of the following is not true for a parallelogram ?

Options

A. Opposite sides are equal
B. Opposite angles are equal
C. Opposite angles are bisected by the diagonals
D. Diagonals bisect each other

Explanation

To determine which statement is not true for a parallelogram, we need to analyze the properties of parallelograms. Let's go through the properties step by step.

### Step 1: Understand the properties of a parallelogram
A parallelogram is a quadrilateral with opposite sides that are both parallel and equal in length.

### Step 2: Check the statements
1. **Opposite sides are equal**: This is true for a parallelogram.
2. **Opposite angles are equal**: This is also true for a parallelogram.
3. **Diagonals bisect each other**: This is true for a parallelogram.
4. **Opposite angles are bisected by the diagonals**: This is not necessarily true for all parallelograms.

### Step 3: Identify the false statement
From the analysis:
- The first three statements are true.
- The statement that "opposite angles are bisected by the diagonals" is not a guaranteed property of all parallelograms.

### Conclusion
The statement that is not true for a parallelogram is: **Opposite angles are bisected by the diagonals**.

### Final Answer
The answer is: **Opposite angles are bisected by the diagonals** (Option C).

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