Answer:
AB = 3
Step-by-step explanation:
Since AB is a perpendicular bisector then Δ is isosceles and AD = AC, that is
4x - 1 = 2x + 3 ( subtract 2x from both sides )
2x - 1 = 3 ( add 1 to both sides )
2x = 4 ( divide both sides by 2 )
x = 2
Hence AB = x + 1 = 2 + 1 = 3
AB=3
hope it will help you.
we need the question
Answer: -1
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