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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...

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")...

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...

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...

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...

other sides. A triangle with one interior angle measuring more than 90° is an obtuse triangle or obtuse-angled triangle. If c is the length of the longest...

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...

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...

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...

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...

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...

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...

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}{2}}-{\frac {\sqrt {2}}{4}}\right)\approx 81.578\,942^{\circ };} one obtuse angle (between the short edges), with value: arccos ⁡ ( − 1 4 − 2 8 ) ≈ 115...

intersection) generally has three arms of equal size coming at an acute or obtuse angle to each other; while a T junction (or T intersection) also has three...

converge." Khayyam then considered the three cases right, obtuse, and acute that the summit angles of a Saccheri quadrilateral can take and after proving...

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...

The anatomical neck of the humerus is obliquely directed, forming an obtuse angle with the body of the humerus. It represents the fused epiphyseal plate...

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...

three mutually exclusive options: Are the summit angles right angles, obtuse angles, or acute angles? Saccheri himself did not consider the possibility...

opposite vertices at which all angles are equal. If this angle us acute then the rhombohedron is long and thin (prolate), if obtuse then it is low and wide (oblate)...