Question 983672
Your formula is missing the division symbol between the two digits, and the needed grouping symbols.


Multiplicative inverse is used in the Multiplication Property of Equality; and then find square root.



{{{V(3/1)(1/(pi*h))=(1/3)pi*r^2*h(3/1)(1/(pi*h))}}}


{{{(3V)/(pi*h)=r^2}}}



{{{highlight(r=sqrt((3V)/(pi*h)))}}}