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acute-angled triangle) is a triangle with three acute angles (less than 90°). An obtuse triangle (or obtuse-angled triangle) is a triangle with one obtuse angle...13 KB (2,153 words) - 10:20, 2 August 2024- Look up obtuse in Wiktionary, the free dictionary. Obtuse may refer to: Obtuse angle, an angle of between 90 and 180 degrees Obtuse triangle, a triangle...424 bytes (85 words) - 12:35, 22 October 2023
perpendicular. An angle larger than a right angle and smaller than a straight angle (between 90° and 180°) is called an obtuse angle ("obtuse" meaning "blunt")...54 KB (6,722 words) - 03:29, 6 August 2024
Law of cosines (category Angle)In obtuse-angled triangles the square on the side subtending the obtuse angle is greater than the squares on the sides containing the obtuse angle by...36 KB (5,663 words) - 04:31, 2 August 2024
Triangle (redirect from Angle proofs)Side-Side-Angle condition does not by itself guarantee that the triangles are congruent because one triangle could be obtuse-angled and the other acute-angled....56 KB (8,655 words) - 18:09, 14 June 2024
right angles in definitions 11 and 12 to define acute angles (those smaller than a right angle) and obtuse angles (those greater than a right angle). Two...7 KB (839 words) - 04:50, 10 April 2024
Orientation (geometry) (redirect from Obtuse directions)its multiplication by −1. Two directions are obtuse if they form an obtuse angle (greater than a right angle) or, equivalently, if their scalar product...15 KB (1,728 words) - 03:25, 9 April 2024
triangle's sides (not extended). In an obtuse triangle (one with an obtuse angle), the foot of the altitude to the obtuse-angled vertex falls in the interior of...27 KB (3,754 words) - 21:37, 8 June 2024
Trapezoid (redirect from Right-angled trapezoid)has two adjacent acute angles on its longer base edge. An obtuse trapezoid on the other hand has one acute and one obtuse angle on each base. An isosceles...25 KB (3,096 words) - 10:19, 5 August 2024- 90 (number) (section Right angle)golden ratio. The obtuse angle of the broad rhombic faces is also the dihedral angle of a regular icosahedron, with the obtuse angle in the faces of golden...15 KB (2,025 words) - 17:30, 30 July 2024
not rectangular but trapezoid with an obtuse angle in the left hand corner of the front wall and an acute angle at the right. Van Gogh started the first...11 KB (1,074 words) - 02:33, 26 July 2024
the other three body diagonals, between the three pairs of opposite obtuse-angled vertices, are all the same length. Four points forming non-adjacent...7 KB (800 words) - 04:18, 23 July 2024
the side adjacent to the obtuse angle has a length of approximately 0.707106785, while the side adjacent to the acute angle has a length of approximately...13 KB (1,415 words) - 22:20, 27 July 2024
Left border of heart (redirect from Obtuse margin)heart (or obtuse margin) is formed from the rounded lateral wall of the left ventricle. It is called the 'obtuse' margin because of the obtuse angle (>90 degrees)...1 KB (192 words) - 21:38, 15 May 2024
has an angle greater than 120°, the Fermat point is sited at the obtuse-angled vertex. In what follows "Case 1" means the triangle has an angle exceeding...20 KB (3,040 words) - 13:27, 17 July 2024- Solution of triangles (redirect from Side-angle-side)larger angle). Since no triangle can have two obtuse angles, γ is an acute angle and the solution γ = arcsin D is unique. If b < c, the angle γ may be...23 KB (3,640 words) - 19:27, 10 January 2024
- acute and two obtuse angles, especially one with acute angles of 45°. The lozenge shape is often used in parquetry (with acute angles that are 360°/n...18 KB (1,901 words) - 16:43, 11 April 2024
Isosceles trapezoid (section Angles)the base angles have the same measure pairwise. In the picture below, angles ∠ABC and ∠DCB are obtuse angles of the same measure, while angles ∠BAD and...9 KB (1,180 words) - 10:03, 5 August 2024
Isosceles triangle (section Angle bisector length)angles opposite the legs are equal and are always acute, so the classification of the triangle as acute, right, or obtuse depends only on the angle between...37 KB (4,080 words) - 23:34, 10 May 2024- converge." Khayyam then considered the three cases right, obtuse, and acute that the summit angles of a Saccheri quadrilateral can take and after proving...44 KB (6,018 words) - 09:27, 4 August 2024
- (obsolete) obtuse-angled (not comparable) (geometry) Of a triangle, having an obtuse angle. (of a triangle): obtuse (of a triangle): acute, acute-angled of a
- right-angled triangle has one angle a right angle, the side opposite this angle being called the hypotenuse; an obtuse angled triangle has one angle obtuse
- redefine distance in this way we may have the obtuse-angled geometry, elliptic geometry, or the acute-angled, hyperbolic geometry of Lobachevski. An illuminating
- enclose an acute-angled triangle. For an obtuse-angled triangle, the circle with the longest side as a diameter is smaller. (For a right-angled triangle, these