Measure, Convert and Calculate Perimeter
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Measure, Convert and Calculate Perimeter
Part 1: Measure and Record
Choose a suitable tool. Measure carefully and record the measurement with its unit. Use mixed units when helpful.
Tools: ruler or tape measure for length, scales for mass, measuring jug for capacity.
Part 2: Convert and Calculate Perimeter
Remember: 10 mm = 1 cm and 100 cm = 1 m. Perimeter is the distance around the outside of a shape. Add every outside side.
1 m 23 cm = ____________________ cm
2 m 35 cm = ____________________ cm
8 cm
┌────────────┐
4 cm│ │4 cm
└────────────┘
8 cm
Perimeter = ____________________ cm
30 mm
┌──────────┐
20 mm│ ╲ 25 mm
└───────────╲
35 mm
Perimeter = ____________________ mm
6 m
┌──────────────┐
3 m │ │ 3 m
└──────────────┘
6 m
Perimeter = ____________________ m
Part 3: Final Perimeter Check
Show your working. Make sure your answer has the correct unit.
/╲
30 cm / ╲ 45 cm
/____╲
25 cm
Perimeter = ____________________ cm
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