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To calculate the area of the shape shown, it appears to be a composite figure rather than a simple rectangle. The figure can be split into basic geometric shapes like rectangles and triangles for easier calculation.

Let's break it down:

- **Step 1**: The main section is a rectangle with a width of **14 meters** and a height of **18 meters**.
  - Area of this rectangle = \( 14 \times 18 = 252 \, \text{m}^2 \).

- **Step 2**: There is a triangular portion that cuts into the upper-left side of the shape.
  - The base of this triangle is the remaining portion after subtracting 14 meters from the total width of 20 meters. So, base of the triangle = \( 20 - 14 = 6 \, \text{meters} \).
  - The height of the triangle is given as **11 meters**.
  - Area of this triangle = \( \frac{1}{2} \times \text{base} \times \text{height} = \frac{1}{2} \times 6 \times 11 = 33 \, \text{m}^2 \).

- **Step 3**: The total area of the composite shape is the area of the rectangle minus the area of the triangular cut-out.

\[
\text{Total area} = 252 \, \text{m}^2 - 33 \, \text{m}^2 = 219 \, \text{m}^2
\]

### Final Answer: 
The total area of the shape is **219 square meters (m²)**.

Would you like a detailed breakdown of the steps, or do you have any other questions? Here are a few related questions to explore:

1. How do you calculate the perimeter of this composite shape?
2. What would happen if the triangle was not subtracted but added to the shape?
3. How can you confirm the dimensions of complex shapes in real-life measurements?
4. Can you apply the same method to calculate the area of a trapezoidal section?
5. How does the area formula for a triangle differ from other polygon shapes?

**Tip**: Always try to break down complex shapes into simpler geometric figures for easier area calculations.

Learn how to calculate the area of a composite shape made up of a rectangle and a triangular cut-out. In this example, a rectangle with dimensions 14m by 18m and a triangle with a base of 6m and a height of 11m are used. Suitable for students in Grades 6-8.

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