അതിനാൽ, ഉപരിതല വിസ്തീർണ്ണം വിലയിരുത്തുന്നതിന്, ആർക്ക് നീളം എന്ന ആശയത്തിൽ നിന്ന് വിവർത്തനം ചെയ്യാൻ നമ്മൾ ശ്രമിക്കും.
కాబట్టి, సర్ఫేస్ ఏరియా ని లెక్కించడానికి, మనము ఆర్క్ పొడవు ఆలోచన నుండి పరిగణించడానికి ప్రయత్నిస్తాము.