At a given point (A) in a given right line (AB) to make an angle equal to a given rectilineal angle (DEF)
At a given point (A) in a given right line (AB) to make an angle equal to a given rectilineal angle (DEF)
At a given point (A) in a given right line (AB) to make an angle equal to a given rectilineal angle (DEF)
At a given point (A) in a given right line (AB) to make an angle equal to a given rectilineal angle (DEF)
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