Answer: 2.33
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Explanation:
x = length of the unknown horizontal side AC
We have an unknown opposite side and known adjacent side.
Apply the tangent ratio to solve for x
tan(angle) = opposite/adjacent
tan(B) = AC/BC
tan(25) = x/5
5*tan(25) = x
x = 5*tan(25)
x = 2.331538290775
x = 2.33 which is the approximate length of AC
