Tangential quadrilateral
Tangential quadrilateral
Polygon whose four sides all touch a circle.
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Quadrilateral
Four-sided polygon.
36%
Pitot theorem
In a quadrilateral with all sides tangent to a circle, sums of opposite sides are equal.
8.9%
Kite (geometry)
Quadrilateral symmetric across a diagonal.
8.6%
Incircle and excircles
Circles tangent to all three sides of a triangle.
8%
Cyclic quadrilateral
Quadrilateral whose vertices lie on a circle.
7.4%
Tangential polygon
Convex polygon that contains an inscribed circle.
6.8%
Bicentric quadrilateral
Convex, 4-sided shape with an incircle and a circumcircle.
3.1%