**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 find out how many lengths of garden edging you need, we can follow these steps:

1. **Convert the length of garden edging from millimeters to meters:**
   \[
   1800 \, \text{mm} = 1.8 \, \text{m}
   \]

2. **Divide the total perimeter of the garden by the length of one edging strip:**
   \[
   \frac{14 \, \text{m}}{1.8 \, \text{m}} = 7.78
   \]

3. Since you can't buy a fraction of a length, round up to the nearest whole number:
   \[
   \text{You will need } 8 \text{ lengths of edging.}
   \]

So, you'll need to buy **8 lengths** of garden edging.

Would you like more details or further clarification?

### 5 Related Questions:
1. How would the calculation change if the garden perimeter was 20 meters instead of 14?
2. What if the edging comes in 2-meter lengths? How many would you need?
3. If the edging costs $10 per length, how much will the total cost be for the entire perimeter?
4. What if the garden had a curved shape—how might that affect the number of lengths needed?
5. Could using a different material affect how much garden edging you'd need?

### Tip:
When working with lengths in different units, always make sure to convert them to the same unit before performing calculations.

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?

Learn how to calculate the number of garden edging lengths needed for a 14-meter perimeter. This problem involves converting millimeters to meters, dividing the total perimeter by the length of the edging, and rounding up to the nearest whole number. Suitable for students in Grades 5-7.

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