Answer:
4√3
Step-by-step explanation:
For isosoles triangles the legs are congruent
v = u
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using the pythagorean theorem
(4√6)² = v² + v²
(16 * 6) = 2v²
Divide both sides by 2
16 * 3 = v²
Take the square root of both sides
4√3 = v
