标题: 1/10 pi as a trangle theta [打印本页] 作者: W.D.G 时间: 2025-3-12 08:04 标题: 1/10 pi as a trangle theta 1/10 pi as a trangle theta,to solve this mathematics equtation as pic. + s" e( h. Z! F/ |1 S' V C, ?) s 作者: W.D.G 时间: 2025-3-27 08:40
mathematics equtation + ^! O+ h9 n) y! g h' P