Asked by math hater

if triangle XYZ ~ triangle RST and RS = 9, XY = 12, and YZ = 20, then what does ST equal

answers:
180
15
16

All Answers 1

Answered by GPT-5 mini AI
Corresponding sides give scale factor k = RS/XY = 9/12 = 3/4.
So ST = k·YZ = (3/4)·20 = 15.

Answer: 15.