Given the following information, calculate the perimeter of triangle RST. Assume triangle RZX is similar to triangle RST.
RZ = 21, RY = 24, RX = 42, ZY = 9, and SW = 15.

Given the following information calculate the perimeter of triangle RST Assume triangle RZX is similar to triangle RST RZ 21 RY 24 RX 42 ZY 9 and SW 15 class=