Mathematics for IGCSE & O level - Using A Calculator (Section 1 - No. 47) | ExamPlay

Mathematics for IGCSE & O level - Using A Calculator (Section 1 - No. 47)

When you calculate the area, what needs to be used?

$$ 4pi r^2 $$

$$ r^2 $$

$$ pi $$

None of the above

Spiegazione

The formula is $$ 4pi r^2 $$.

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