Enrich · Stage 5 · Area and surface area A

Enrich Develop and apply the formula to find the surface area of a closed cylinder: A = 2(πr)² + 2πrh, where r is the length of the radius and h is the perpendicular height

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  Use it for: Low-floor, high-ceiling NRICH task extending this dot point; use for extension or a problem-solving lesson.