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  2. Transversal (geometry) - Wikipedia

    en.wikipedia.org/wiki/Transversal_(geometry)

    If the two angles of one pair are congruent (equal in measure), then the angles of each of the other pairs are also congruent. Proposition 1.27 of Euclid's Elements , a theorem of absolute geometry (hence valid in both hyperbolic and Euclidean Geometry ), proves that if the angles of a pair of alternate angles of a transversal are congruent ...

  3. Angles between flats - Wikipedia

    en.wikipedia.org/wiki/Angles_between_flats

    The concept of angles can be generalized to pairs of flats in a finite-dimensional inner product space over the ... are the angles between and . The non ...

  4. Angle - Wikipedia

    en.wikipedia.org/wiki/Angle

    The supplement of an interior angle is called an exterior angle; that is, an interior angle and an exterior angle form a linear pair of angles. There are two exterior angles at each vertex of the polygon, each determined by extending one of the two sides of the polygon that meet at the vertex; these two angles are vertical and hence are equal.

  5. Rotations and reflections in two dimensions - Wikipedia

    en.wikipedia.org/wiki/Rotations_and_reflections...

    A rotation in the plane can be formed by composing a pair of reflections. First reflect a point P to its image P′ on the other side of line L 1. Then reflect P′ to its image P′′ on the other side of line L 2. If lines L 1 and L 2 make an angle θ with one another, then points P and P′′ will make an angle 2θ around point O, the ...

  6. Curvilinear coordinates - Wikipedia

    en.wikipedia.org/wiki/Curvilinear_coordinates

    At the distance PB the true angle is that which the tangent at point C forms with the x axis and the latter angle is clearly different from . The angles that the q 1 line and that axis form with the x axis become closer in value the closer one moves towards point P and become exactly equal at P.

  7. Line (geometry) - Wikipedia

    en.wikipedia.org/wiki/Line_(geometry)

    More precisely, every line (including vertical lines) is the set of all points whose coordinates (x, y) satisfy a linear equation; that is, = {(,) + =}, where a, b and c are fixed real numbers (called coefficients) such that a and b are not both zero.

  8. Bodyweight Exercises vs. Lifting Weights: Which Is More ... - AOL

    www.aol.com/lifestyle/bodyweight-exercises-vs...

    Bodyweight exercises rely on the body itself as resistance, encompassing movements like push-ups, pull-ups, and squats. In contrast, lifting weights employs various

  9. Analytic geometry - Wikipedia

    en.wikipedia.org/wiki/Analytic_geometry

    Lines in a Cartesian plane, or more generally, in affine coordinates, can be described algebraically by linear equations. In two dimensions, the equation for non-vertical lines is often given in the slope-intercept form: = + where: m is the slope or gradient of the line. b is the y-intercept of the line.