# Perimeter (age 10+)

Recognise that shapes with the same area can have different perimeters and vice versa; explore this relationship systematically

Builds on: Estimating answers (age 9+) (hard, https://ai.page/c/estimating-answers-age-9/en.md)

Concept id: perimeter-age-10. Subject: maths. Licence: CC BY-SA 4.0.

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