January 2005 - Question 2



We're going to look at the common factors that are on the right side and take them across to the left.

V/π = 4/3r3

Now we're going to take another common factor, but as it's a fraction, we need to flip it over.

3V/4π = r3

Now all we need to do is take over the power of 3.

3√(3V/4π) = r

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