👉 Bicentric refers to a quadrilateral that has two diagonals that intersect at right angles. This means that it is a cyclic quadrilateral, meaning that its four vertices are all on a circle or ellipse in the plane. The intersection of these two diagonals is also an inscribed angle, which is one of the six types of angles formed by chords in a circle. Bicentric quadrilaterals can have various properties and characteristics, such as being cyclic, having equal sides and angles,