Trignometric ratios ?

Suppose in a triangle ABC, right angeled at C. Where angle A is Theta and the opposite side is BC, hypotaneuse AB. Given Cosec A = 2 which is equal to Hypotaneuse divided by Opposite side. None of the sides are mentioned and as per the question we have to find all other trignometric ratios with the help of all the sides. If Cosec A= 2 then whether the Hypotaneuse and opposite side will be 2 / 1 or 4 / 2. Then how will we find the sides. If it can either be ( 4 and 2 ) or ( 2 and 1 ). Or is it ok if it can be any side since nothing more is mentioned. Thank you.