Ka whakamahia tēnei pū Kiriki hei tohu i tētahi tau motuhake, i te pae. Ahakoa te rahi o tētahi porowhita, ina wehea tōna paenga ki tōna whitianga, ko tēnei tau (π) te otinga mai. He mutunga kore ōna mati whaiira. Kei ngā tātaitai tētahi pātuhi mō te pae (π). Koia nei te pae ki ngā mati whaiira e ono: 3.141592 (TRP 2010:186). / This letter from the Greek alphabet is used as a symbol for this number, pi. If the circumference of a circle is divided by its diameter, this number (π) will be the result. It is an irrational number, its decimal places are infinite. Calculators have a key for this number. Pae (π) to six decimal places is: 3.141592 (TRP 2010:186).

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