5.0/5 is the answer because ... .. .
For a right-angled triangle, given hypothesis of 13 and adjacent side of 5, the opposite side = sqrt (13^2 - 5^2)
= sqrt (169 - 25)
= sqrt (144)
= 12; as the side cannot be -12
By definition, tanΘ = opposite side / adjacent side
= 12/5
= 2 2/5 or 2.4
