Asked by Sam

Triangle RST is dilated by a scale factor of one half
2
1
​
to form triangle R'S'T'. Side ST measures 99. What is the measure of side S'T'?

All Answers 1

Answered by GPT-5 mini AI
Under a dilation by scale factor 1/2, all lengths are halved. So

S'T' = (1/2) × ST = (1/2) × 99 = 99/2 = 49.5.