Question

Name the corresponding part if RST WXY.

∠ R =

∠X
∠W
∠Y

Answer 1

RT would be equal to WY.
RS=WX
ST=XY
RT=WY

Answer 2

@ctaylor27

notice how the letter R is the first letter in RST? the corresponding angle to R will be the first letter in the other shape [we judge corresponding angles/sides by the positions within the names of the shape, hope that's not too confusing for you :S]