Measure boundaries and regions
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What is the perimeter of the rectangle?
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A rectangle is 6 cm long and 4 cm wide.
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Answer: 20 cm
- The boundary has two lengths of 6 cm and two of 4 cm.
- 2 × (6+4) = 20 cm.
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Curriculum reference
Victorian Curriculum F–10 Version 2.0
Pi Leo practice scope
Find perimeter and area by counting, decomposing and recombining shapes.
Read the official VCAA curriculum description (VC2M5M02)
These quizzes practise concepts within this topic. Multiple-choice answers alone do not demonstrate drawing, conducting an investigation or using a digital tool.
Activities to practise beyond the quiz
- Supported by the guided activity; selecting an MCQ does not demonstrate this action.
- VC2M5M02-C01Perimeter is the total distance around the exterior. Count only outside edges, with a length unit.
- VC2M5M02-C02Rows of unit squares explain why a rectangle has length × width square units. Area and perimeter answer different questions.
- VC2M5M02-C03Find areas by splitting or subtracting rectangles, and reason about every boundary edge when a rectangular corner is removed.
- VC2M5M02-C04Representing a practical regular/irregular region and selecting an area/perimeter method.
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Subskills
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Descriptor-derived subskills
- D01Follow the outside boundaryPerimeter is the total distance around the exterior. Count only outside edges, with a length unit.
- D02Cover an area in square unitsRows of unit squares explain why a rectangle has length × width square units. Area and perimeter answer different questions.
- D03Split regions and trace changed boundariesFind areas by splitting or subtracting rectangles, and reason about every boundary edge when a rectangular corner is removed.