He Pātaka Kupu

tau ā-ira¹

ing .
He tau e whai ana i tētahi hautanga ā-ira. E rua ōna wāhanga - ki te taha mauī o te ira he tauoti, ki te taha matau he hautanga ā-ira. Ka riro māna e whakamārama i te tau ā-ira 538.72 ki te rōpū. { tau ngahuru }