Answer:
⬇️
Step-by-step explanation:
UV = 1/2 TS
UV = 1/2 42
UV = 21
RS = 2* UW
RS = 2*23
RS = 46
RT = 2 * VW
RT = 2*19
RT = 38
Perimeter of RST = RT + TS + RS
Perimeter of RST = 38 + 42 + 46
Perimeter of RST = 128
