Question

please help me answer this.

Answer 1

resistances are 20, 30, 9 and 46 clockwise direction.

Answer 2

\[R_4=\frac{R_1R_2}{R_1+R_2+R_3}\]\[R_5=\frac{R_1R_3}{R_1+R_2+R_3}\]\[R_6=\frac{R_2R_3}{R_1+R_2+R_3}\]Use this transformation in either of the triangle (containing 3 resistances).. And find total resistance.
And then use ohm's law to find current.