You need garden edging for a garden with a perimeter of 14m. Garden edging comes in 1800mm lengths. How many lengths will you need to buy to have enough edging for the entire perimeter?

To determine how many 1800mm lengths of garden edging you need for a garden with a perimeter of 14 meters, follow these steps:

1. **Convert the perimeter to millimeters**:  
   Since 1 meter = 1000 millimeters, a 14-meter perimeter is:  
   \[
   14 \times 1000 = 14,000 \text{ mm}
   \]

2. **Determine how many 1800mm lengths fit into the 14,000mm perimeter**:  
   Now divide the total perimeter (in millimeters) by the length of each edging piece:  
   \[
   \frac{14,000}{1800} \approx 7.78
   \]
   
3. **Round up to the nearest whole number**:  
   Since you can't purchase a fraction of a length, you'll need to round up. So, you need 8 lengths of edging.

Thus, you need to buy **8 lengths** of 1800mm garden edging to cover the 14-meter perimeter.

Would you like a detailed breakdown, or do you have any questions about this?

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Here are 5 related questions:
1. What would happen if the edging came in a different length, like 2 meters? How many would you need then?
2. How would the calculation change if your garden perimeter were 18 meters?
3. What if the garden perimeter had an irregular shape, how would you approach that?
4. How could you reduce the total number of lengths needed?
5. What material considerations should be taken into account when choosing garden edging?

**Tip:** When working with perimeter calculations, always ensure the units are consistent before doing any math.

Learn how to calculate the number of 1800mm garden edging lengths needed to cover a garden perimeter of 14 meters. This step-by-step solution involves converting meters to millimeters, performing division, and rounding up to ensure you have enough edging. Suitable for students in Grades 5-7.

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