Answer with showing all work Use the figure below to transfe

Answer with showing all work:

Use the figure below to transfer (Delta) to an equivalent Y:

here 25 ohms and 25 ohms are parallel.

(25*25)/(25+25)=12.5 ohms

next 24 ohms and 36 ohms are series.=24+36=60 ohms.

R1=[(40*12.5)/(40+60+12.5)]=4.44 ohms.

R2=[(60*12.5)/(40+60+12.5)]=6.66 ohms.

R3=[(40*60)/(40+60+12.5)]=21.33 ohms.