Area and perimetre of rectangles
Write the unit with every answer: cm² for area, cm for perimetre.
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See worked examples
A rectangle is 7 cm by 9 cm. Find its area and perimeter.
Answer: Area: 63 cm²; Perimeter: 32 cm
A rectangle is 2 cm by 4 cm. Find its area and perimeter.
Answer: Area: 8 cm²; Perimeter: 12 cm
A rectangle is 5 cm by 5 cm. Find its area and perimeter.
Answer: Area: 25 cm²; Perimeter: 20 cm
Tip: Write the unit with every answer: cm² for area, cm for perimetre.
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Curriculum
Common Core: 4.MD.A.3, 3.MD.D.8
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On paper: this skill is in the printable pack Grade 5 Common Core Math: Geometry and Measurement, with an answer key.
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- Fence It, Fill It: Area and Perimeter Grades 3–4 · printable lessons
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