R & U are the midpoints of TV & SV. By using mid point theorem..,
ST = 2 RU
y + 6 = 2 (y - 23)
y + 6 = 2y - 46
y - 2y = - 46 - 6
- y = -52.
=》 y = 52.
ST = y + 6 = 52 + 6 = 58
=》 ST = 58
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RainbowSalt2222 ☔
