• Thumbnail for Tangential trapezoid
    a tangential trapezoid, also called a circumscribed trapezoid, is a trapezoid whose four sides are all tangent to a circle within the trapezoid: the...
    8 KB (944 words) - 06:28, 30 January 2025
  • Thumbnail for Isosceles trapezoid
    Isosceles tangential trapezoid Trapezoid is the term used in American English, while in British English, it is an isosceles trapezium; see Trapezoid § Etymology...
    13 KB (1,490 words) - 05:48, 19 April 2025
  • Thumbnail for Tangential quadrilateral
    both tangential and cyclic, it is called a bicentric quadrilateral, and if it is both tangential and a trapezoid, it is called a tangential trapezoid. In...
    36 KB (5,163 words) - 06:44, 6 April 2025
  • Thumbnail for Trapezoid
    used by James Garfield to prove the Pythagorean theorem. A tangential trapezoid is a trapezoid that has an incircle. Four lengths a, c, b, d can constitute...
    33 KB (4,075 words) - 03:03, 28 May 2025
  • Thumbnail for Tangential polygon
    In Euclidean geometry, a tangential polygon, also known as a circumscribed polygon, is a convex polygon that contains an inscribed circle (also called...
    6 KB (719 words) - 19:25, 11 April 2025
  • collinear. In a tangential trapezoid, the tangencies of the incircle with the two bases are collinear with the incenter. In a tangential trapezoid, the midpoints...
    18 KB (2,581 words) - 13:29, 15 May 2025
  • Thumbnail for Quadrilateral
    tangential if and only if opposite sides have equal sums. Tangential trapezoid: a trapezoid where the four sides are tangents to an inscribed circle....
    50 KB (6,989 words) - 06:50, 2 April 2025
  • Thumbnail for Kite (geometry)
    quadrilateral (its diagonals are at right angles) and, when convex, a tangential quadrilateral (its sides are tangent to an inscribed circle). The convex...
    38 KB (3,800 words) - 16:41, 11 April 2025
  • Rhomboid Rhombus Square (regular quadrilateral) Tangential quadrilateral Trapezoid Isosceles trapezoid Trapezus Pentagon – 5 sides Hexagon – 6 sides Lemoine...
    5 KB (399 words) - 18:05, 14 March 2025
  • Thumbnail for Dual polygon
    properties of the cyclic and tangential quadrilaterals. This duality is perhaps even more clear when comparing an isosceles trapezoid to a kite. The simplest...
    5 KB (538 words) - 16:00, 20 September 2023
  • Thumbnail for Bicentric quadrilateral
    bicentric quadrilaterals are squares, right kites, and isosceles tangential trapezoids. A convex quadrilateral ABCD with sides a, b, c, d is bicentric...
    25 KB (3,823 words) - 01:31, 13 May 2025
  • Thumbnail for Right kite
    geometric mean theorem. The dual polygon to a right kite is an isosceles tangential trapezoid. Sometimes a right kite is defined as a kite with at least one right...
    5 KB (701 words) - 21:17, 5 April 2025
  • Thumbnail for Antiparallelogram
    closely related to the tangential quadrilaterals, ex-tangential quadrilaterals, and kites (which are both tangential and ex-tangential). Every antiparallelogram...
    17 KB (1,853 words) - 07:20, 6 February 2025
  • Orthodiagonal quadrilateral Rhombus Rectangle Square Tangential quadrilateral Trapezoid Isosceles trapezoid Sangaku Straightedge Symmedian Tessellation Prototile...
    13 KB (914 words) - 10:26, 25 December 2024
  • Thumbnail for Perpendicular
    rectangle, all pairs of adjacent sides are perpendicular. A right trapezoid is a trapezoid that has two pairs of adjacent sides that are perpendicular. Each...
    15 KB (2,314 words) - 18:12, 19 May 2025
  • Thumbnail for Poncelet–Steiner theorem
    noting that if trapezoid ABED is an isosceles trapezoid then the bisector CX is also a perpendicular bisector. An isosceles trapezoid is formed when lines...
    94 KB (13,108 words) - 16:40, 26 May 2025
  • Rectangle square (regular quadrilateral) Tangential quadrilateral Trapezoid or trapezium Isosceles trapezoid Pentagon Regular pentagon Hexagon Lemoine...
    46 KB (3,547 words) - 00:42, 27 May 2025
  • Thumbnail for Line (geometry)
    Tangent to a curve. The red line is tangential to the curve at the point marked by a red dot....
    29 KB (4,225 words) - 18:36, 24 April 2025
  • The Brown–Conrady model corrects both for radial distortion and for tangential distortion caused by physical elements in a lens not being perfectly aligned...
    21 KB (2,782 words) - 01:25, 26 March 2025
  • Thumbnail for Michael Heizer
    presence and absence, matter and space, are essential to his art. In Trapezoid Painting (1966) and Track Painting (1967), he emphasizes the perimeters...
    22 KB (2,402 words) - 02:09, 3 April 2025
  • Thumbnail for Rhombus
    quadrilateral that is both a kite and parallelogram is a rhombus. A rhombus is a tangential quadrilateral. That is, it has an inscribed circle that is tangent to...
    15 KB (1,694 words) - 00:10, 18 May 2025
  • Thumbnail for Cyclic quadrilateral
    quadrilateral that is also tangential and an ex-bicentric quadrilateral is a cyclic quadrilateral that is also ex-tangential. A harmonic quadrilateral...
    31 KB (4,096 words) - 17:31, 3 April 2025
  • Thumbnail for Bent Pyramid
    used as in the step pyramids, because masons were not able to produce trapezoid stones at this phase. While step pyramids were built in ring-shaped shells...
    26 KB (3,141 words) - 22:00, 23 May 2025
  • friction law. Coulomb's friction law can be expressed as follows: when the tangential velocity U T {\displaystyle U_{\rm {T}}} is not equal to zero, namely...
    19 KB (2,392 words) - 16:36, 23 May 2025
  • Thumbnail for Bicentric polygon
    In geometry, a bicentric polygon is a tangential polygon (a polygon all of whose sides are tangent to an inner incircle) which is also cyclic — that is...
    8 KB (821 words) - 15:21, 19 November 2024
  • Thumbnail for Pleuron (Aetolia)
    and must have leaned against the wall. The circle of the orchestra is tangential to the skena. The cavea, well preserved at the north, had five sections...
    9 KB (1,325 words) - 22:17, 24 October 2024
  • being manufactured. In recent years, the plant has started to produce tangential hammer mills and roller mills. Roller mills are widely used in various...
    7 KB (787 words) - 20:38, 12 June 2018
  • use Neumann problems on the subdomains Poincaré–Steklov operator — maps tangential electric field onto the equivalent electric current Schur complement method...
    70 KB (8,335 words) - 20:20, 17 April 2025
  • Thumbnail for Aeschynomene elaphroxylon
    Isolated vessels are scattered in this mass of tracheids, accompanied by tangentially arranged groups of libriform cells (uncommon, resembling phloem, but...
    45 KB (4,989 words) - 20:35, 23 May 2025
  • magnesium alloys — Wrought magnesium and magnesium alloys ISO 3117:1977 Tangential keys and keyways [Withdrawn without replacement] ISO 3118:1976 Sodium...
    205 KB (28,951 words) - 23:36, 17 March 2025