help with 3-phase star connection

Three loads each having an impedance of 17.2 ohms and a reactance of
10 ohms are star connected across a 220 volt three phase supply.
Calculate the following:
(a) resistance per phase;
(b) current per phase;
(c) three phase kVa;​

(d) power factor.

Thanks

 

The key word here is HELP, not DO. Please show your attempts at answering your questions and I'm sure you will get the HELP and guidance you need.

 

That's the problem Sir, I don't really know where/how I should begin.