If two secants are drawn to a circle from an external point, then the product of the length of one secant segment and its ...

Two points P and P' are isotomic conjugates with respect to triangle ABC if the cevians AP, BP, CP intersect the sides BC, CA ...

Eva Magdalena Chalco Chango, who has no lawyer, asked a federal judge to free her brother, whom she has cared for throughout his life. By Benjamin Weiser and Luis Ferré-Sadurní Readers discuss equal ...