In the diagram, polygon abcd is reflected across ef to make polygon a'b'c'd', which statement must be true?
a hb = hb
b. fa 1 ad
c. ab = bb
d. bbʻ 1 dd
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thus, the correct statement is   hb = hb'

true? is that what you're asking or do you mean something else?

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right