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An obtuse trapezoid on the other hand has one acute and one obtuse angle on each base. An isosceles trapezoid is a trapezoid where the base angles have the same measure. As a consequence the two legs are also of equal length and it has reflection symmetry .
An acute triangle (or 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 (greater than 90°) and two acute angles. Since a triangle's angles must sum to 180° in Euclidean geometry, no Euclidean triangle can have more than one obtuse ...
These geometries also have regular polygons with right angles, but with numbers of sides different from four. In spherical geometry, a square is a polygon whose edges are great-circle arcs of equal length, which meet at equal angles. Unlike the square of Euclidean geometry, spherical squares have obtuse angles, larger than a right angle. Larger ...
The Ford Anglia 105E was manufactured from 1959 to 1967 and had a complete mess of a design, with all kinds of acute and obtuse angles on the body that make neither aerodynamic nor aesthetic sense.
An angle larger than a right angle and smaller than a straight angle (between 90° and 180°) is called an obtuse angle [11] ("obtuse" meaning "blunt"). An angle equal to 1 / 2 turn (180° or π radians) is called a straight angle. [10] An angle larger than a straight angle but less than 1 turn (between 180° and 360°) is called a ...
Obtuse may refer to: Obtuse angle, an angle of between 90 and 180 degrees; Obtuse triangle, a triangle with an internal angle of between 90 and 180 degrees;
Roof angles are an integral component of roof shape, and vary from almost flat to steeply pitched. Roof shapes differ greatly from region to region, depending on the climate, materials available, customs, and many other considerations. Roof terminology is not rigidly defined.
Obtuse case. Figure 7b cuts a hexagon in two different ways into smaller pieces, yielding a proof of the law of cosines in the case that the angle γ is obtuse. We have in pink, the areas a 2, b 2, and −2ab cos γ on the left and c 2 on the right; in blue, the triangle ABC twice, on the left, as well as on the right.