Answer:
y = 3
ST = 12
TU = 12
Explanation:
V is bisected and makes both triangles a right triangle and are equal to each other by the SAA congruence. This means ST = TU.
4y = 2y + 6
2y = 6
ST = 4y = 4(3) = 12
TU = 2y + 6 = 2(3) + 6 = 12
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