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Mathematics for IGCSE & O level - Using A Calculator (Section 2 - No. 10)
How is the area of a sphere worked out?
$$A = 4pi r^2$$
$$A = pi r^2$$
$$A = 2pi r$$
All of the above
Forklaring
The formula is $$A = 4pi r^2$$
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Tillad, at javascript indlæser denne side korrekt
