A child of class VII defined the rectangle as follows:
"Rectangle is a quadrilateral whose opposite sides are parallel and equal."
The definition reflects that the child

Options

A. knows some properties, but missed some important to complete the definition
B. cannot recognize the shape
C. do not know the correct properties of the shape
D. knows the properties of the shape, but erpeated some properties in definition.

Answer

To solve the question, we need to analyze the definition provided by the child and determine what it reflects about their understanding of rectangles.

### Step-by-Step Solution:

1. **Understanding the Definition**:
The child defines a rectangle as "a quadrilateral whose opposite sides are parallel and equal." This means that the child recognizes two key properties of a rectangle:
- Opposite sides are equal in length.
- Opposite sides are parallel.

2. **Identifying Missing Properties**:
While the child has mentioned some important properties, the definition is incomplete. A rectangle also has:
- Four right angles (90 degrees).
- All angles are equal.

3. **Evaluating the Options**:
We need to evaluate the options given in the question based on the child's definition:
- **Option A**: "Knows some properties but missed some important to complete the definition." This option suggests that the child has some understanding but lacks completeness.
- **Option B**: "Cannot recognize the shape." This option implies a lack of understanding, which does not fit since the child has identified some properties.
- **Option C**: "Do not know the correct properties of the shape." This option also implies a lack of knowledge, which is not the case.
- **Option D**: "Knows the properties of the shape but repeated some properties in the definition." This option suggests that the child is aware of the properties but has not articulated them completely.

4. **Choosing the Correct Option**:
Based on the analysis, the most fitting option is **Option A**: "Knows some properties but missed some important to complete the definition." The child has some understanding of rectangles but has not included all necessary properties.

### Final Answer:
The correct answer is **Option A**: "Knows some properties but missed some important to complete the definition."