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Verified answer
TMF = 3 cmLMF = 4,5 cm
TMS = 2,2 m
LMS = x
LMS = ... ?
TMF/TMS = LMF/LMS
3/2,2 = 4,5/x
3 . x = 2,2 . 4,5
3x = 9,9
x = 9,9/3
x = 3,3 (D).