Mathematics for IGCSE & O level - Using A Calculator (Section 1 - No. 10)
If you are calculating the surface area of a sphere and you are given the radius, what formula should you use?
A = 4πr²
A = πr²
A = 2πr
A = 4/3πr³
Explanation
The surface area formula for a sphere is A = 4πr²
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