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  2. Acute and obtuse triangles - Wikipedia

    en.wikipedia.org/wiki/Acute_and_obtuse_triangles

    It is acute, with angles 36°, 72°, and 72°, making it the only triangle with angles in the proportions 1:2:2. [ 5 ] The heptagonal triangle , with sides coinciding with a side, the shorter diagonal, and the longer diagonal of a regular heptagon , is obtuse, with angles π / 7 , 2 π / 7 , {\displaystyle \pi /7,2\pi /7,} and 4 π / 7 ...

  3. Douglas Haynes - Wikipedia

    en.wikipedia.org/wiki/Douglas_Haynes

    Haynes was born and raised in Regina, Saskatchewan. [2] He studied at Alberta's Provincial Institute of Technology and Art (now the Alberta College of Art and Design) with Marion Nicoll, Ronald Spickett, and Illingworth Kerr, from 1954-1958, and the Royal Academy of Art, The Hague, Netherlands in 1960-1961.

  4. Non-Euclidean geometry - Wikipedia

    en.wikipedia.org/wiki/Non-Euclidean_geometry

    The summit angles of a Saccheri quadrilateral are acute if the geometry is hyperbolic, right angles if the geometry is Euclidean and obtuse angles if the geometry is elliptic. The sum of the measures of the angles of any triangle is less than 180° if the geometry is hyperbolic, equal to 180° if the geometry is Euclidean, and greater than 180 ...

  5. Angle - Wikipedia

    en.wikipedia.org/wiki/Angle

    An angle smaller than a right angle (less than 90°) is called an acute angle [11] ("acute" meaning "sharp"). An angle equal to ⁠ 1 / 4 ⁠ turn (90° or ⁠ π / 2 ⁠ radians) is called a right angle. Two lines that form a right angle are said to be normal, orthogonal, or perpendicular. [12]

  6. Kepler triangle - Wikipedia

    en.wikipedia.org/wiki/Kepler_triangle

    The cosine of the larger of the two non-right angles is the ratio of the adjacent side (the shorter of the two sides) to the hypotenuse, , from which it follows that the two non-right angles are [1] θ = sin − 1 ⁡ 1 φ ≈ 38.1727 ∘ {\displaystyle \theta =\sin ^{-1}{\frac {1}{\varphi }}\approx 38.1727^{\circ }} and θ = cos − 1 ⁡ 1 φ ...

  7. ‘May December’ Review: Natalie Portman and Julianne Moore ...

    www.aol.com/may-december-review-natalie-portman...

    Her interactions with the real-life Joe become increasingly flirtatious, to the point one can’t help but wonder whether Elizabeth feels she needs to seduce him in order to understand Gracie ...

  8. 'My Life with the Walter Boys' Was Filmed In A Pretty ... - AOL

    www.aol.com/life-walter-boys-filmed-pretty...

    Netflix’s My Life with the Walter Boys started filming in March of 2022 in Alberta, Canada. They wrapped just six months later. You can catch all the scenic shots in each of the 10 episodes ...

  9. Alfred Haynes - Wikipedia

    en.wikipedia.org/wiki/Alfred_Haynes

    Alfred Haynes can refer to: Al Haynes (1931–2019), American airline pilot known for his crash-landing of United Airlines Flight 232 Alf Haynes (1907–1953), English football player