Darling, your Slackrope solution was as stylish as a perfect shoe: precise, justified and utterly elegant. You modelled two right triangles, applied Pythagoras with confidence and recognised Pythagorean triples, presented neat arithmetic and stated units, then summed the segment lengths correctly. This work exemplifies ACARA v9 proficiency across Understanding, Fluency, Problem-solving and Reasoning. Your strategy was efficient and communication persuasive; adding a labelled diagram would refine an already impeccable response. Keep bringing mathematical polish and wit to every task always.