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 calculate how many lengths of garden edging are needed for the perimeter of 14 meters, follow these steps:

1. **Convert the length of each garden edging**:  
   The garden edging comes in 1800 mm lengths, which is equivalent to 1.8 meters (since 1000 mm = 1 m).

2. **Divide the total perimeter by the length of one edging**:  
   \[
   \text{Number of lengths} = \frac{\text{Perimeter}}{\text{Length of one edging}} = \frac{14 \, \text{meters}}{1.8 \, \text{meters}} \approx 7.78
   \]

3. Since you can't buy a fraction of a length, round 7.78 up to the next whole number.

Thus, you'll need **8 lengths** of garden edging to cover the 14-meter perimeter.

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Would you like further clarification on this?  
Here are some follow-up questions to consider:

1. What if the perimeter was larger or smaller?
2. How would the number of lengths change if the garden edging came in different sizes?
3. What would be the cost if each length had a specific price?
4. Could leftover materials be used efficiently for another project?
5. How much edging would remain unused after covering the perimeter?

**Tip**: Always round up when buying materials to ensure you have enough!

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?

Find out how many garden edging lengths you need for a 14-meter perimeter. This problem involves converting measurements from millimeters to meters, dividing the perimeter by the length of the edging, and rounding up to ensure you have enough material. Suitable for students in Grades 5-7.

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