This is actually fairly simple, just have to work backwards. The equation is V=πr^2*h, fill in what we know, 1100=πr^2*52, now work backwards, 1100/52=πr^2
21.1538461538461538/π=r^2
√6.7334783615801872678=r
2.5948946725407155276451=r
round to the nearest tenth and get
2.6=r
