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Measuring Length and Perimeter

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Measuring Length and Perimeter

Ruler and measuring tools illustration

📏 Part 1: Measurement Skills

1. Which unit would you use to measure each item? Circle the best choice.

a) Length of a pencil:

cm
m

b) Height of a classroom door:

cm
m

c) Width of your thumb:

cm
m

d) Length of a football field:

cm
m

2. Convert these measurements:

a) 250 cm = _______ m

b) 3.5 m = _______ cm

c) 180 cm = _______ m

3. Look at this ruler reading. What is the measurement?

[Imagine a ruler showing 7.3 cm]

The measurement is: _______ cm

4. List three classroom objects you would measure in centimetres:

🔢 Part 2: Calculating Perimeter

5. Calculate the perimeter of these shapes. Show your working.

a) Square with side length 8 cm

Perimeter = _______ cm

b) Rectangle: length = 12 m, width = 7 m

Perimeter = _______ m

c) Triangle with sides 5 cm, 6 cm, and 9 cm

Perimeter = _______ cm

6. A rectangular garden bed is 4.5 m long and 2.8 m wide. How much fencing is needed to go around it?

Answer: _______ m of fencing

🎨 Part 3: Design Challenge

7. Design a rectangular picture frame that has a perimeter of exactly 60 cm.

Draw your frame below and label the dimensions:

Length = _______ cm

Width = _______ cm

Check: Perimeter = _______ cm

8. Explain why accurate measurement is important when:

a) Building a fence around a garden:

b) Making a picture frame:

9. Extension Challenge: A square playground has the same perimeter as a rectangle that is 25 m long and 15 m wide. What is the side length of the square playground?

Side length of square = _______ m

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