What is the null and alternative hypotheses on this?

What rotation was applied to triangle def to create d’e’f’?

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20

❤️ (geometry) does the construction demonstrate how to copy an angle correctly using technology a) yes; the distance between points a and f was used to create circle h b) yes; the distance between points f and g was used to create circle h c)no; the distance between points a and f was used to create circle h d) no; the distance between points f and g was used to create circle h