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Ukuqonda Izinzuzo ze-45 ° Obtuse Street Elbows kuThebula Lasamuhla le-Architecture 1. Isingeniso ku-45 ° Obtus. Ama-Elbows Street 2. Yini i-45 ° Obtuse Street Elbows? 3. Izinzuzo eziyinhloko Zokusebenzisa i-45 ° Obtuse Street Elbows 3.1 Ukuthuthukiswa Kokusebenza Okuthuthukisiwe 3.2 Umklamo Wokuvikela Isikhala 3.3 Ukucatshangelwa Kobuhle Okungu-3.4