n-gon
absinα+cdsinβ…+yzsinω=a'b'sinα'+c'd'sinβ'…+y'z'sinω
=a''b''sinα''+c''d''sinβ''…+y''z''sinω''
T.theodor 2022.12.28.
n-gon
absinα+cdsinβ…+yzsinω=a'b'sinα'+c'd'sinβ'…+y'z'sinω
=a''b''sinα''+c''d''sinβ''…+y''z''sinω''
T.theodor 2022.12.28.