mohon bantuannya,, sebelumnya makasih:')

<a = 360 - 108 - 95 - 85
<a = 72
UT/ZY = ST/XY
b/6 = 4/3
3b = 4×6
b = 24/3 = 8
RS/WX = ST/XY
10/c = 4/3
4c = 3×10
c = 30/4 = 7,5
RU/WZ = ST/XY
6/d = 4/3
4d = 6×3
d = 18/4
d = 4,5