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The question asks if the bubble wrap shown (with dimensions 25 cm by 400 cm) is sufficient to cover the entire surface of a water container. The surface area of the water container is to be calculated using the given formula for the surface area of a cylinder, \(2\pi r^2 + 2\pi rh\), where \(\pi = \frac{22}{7}\).

### Let's break down the problem:

1. **Dimensions of Bubble Wrap:**
   - Width: 25 cm
   - Length: 400 cm
   - Total area of bubble wrap = \( 25 \times 400 = 10,000 \, \text{cm}^2\).

2. **Surface Area of Cylinder:**
   - Use the formula for the surface area of a cylinder: \(2\pi r^2 + 2\pi rh\).
   - The problem doesn't provide dimensions of the water container directly, so you would need to find or assume these to determine if the bubble wrap area covers the surface area of the container.

#### Steps:
1. Calculate the surface area of the water container using the given cylinder formula, provided you know the radius \(r\) and height \(h\).
2. Compare this area to the total area of the bubble wrap (10,000 cm²).

If the surface area of the container is less than or equal to 10,000 cm², the bubble wrap is sufficient to cover it.

Do you have any details about the container's dimensions (radius and height)? If not, assumptions may need to be made.

Would you like to proceed with any assumptions, or provide more details?

Adakah pembungkus gelembung yang digunakan mencukupi untuk membalut keseluruhan bekas air itu?

Learn how to determine if a bubble wrap measuring 25 cm by 400 cm is enough to cover the surface area of a water container. The problem involves calculating the surface area of a cylinder using the formula 2πr² + 2πrh. Suitable for students in Grades 7-9.

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