are all scalene triangles obtuse?
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A triangle is scalene if its three sides have all different lenghts, or, equivalently, if its three angles have all different values. A triangle is obtuse if it has one angle bigger than 90°. In Euclidian geometry, a scalene triangle can be obtuse, right or acute.
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Answer and Explanation: No, not all right triangles are isosceles. Although it is possible to have a right triangle that is an isosceles triangle, not all right triangles...
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A triangle with all sides equal is called an equilateral triangle, and a triangle with no sides equal is called a scalene triangle. An equilateral triangle is therefore a special case of an isosceles triangle having not just two, but all three sides and angles equal.
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Therefore, an isosceles triangle and a scalene triangle can never be similar. SOLUTION: Always; sample answer: Equilateral triangles always have three 60° angles, so the angles of one equilateral triangle are always congruent to the angles of a second equilateral triangle.
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1 Expert Answer An obtuse angle is greater than 90 degrees. So let's let one angle equal 60, another equal 91 and the last equal to 29 which all add up to 180. That's one triangle.
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Why or why not? Yes, all the angles of each of the triangles are acute. Yes, they are congruent by either ASA or AAS. ... No, the congruent sides do not correspond.
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Answer and Explanation: A quadrilateral cannot have four obtuse angles. An obtuse angle is one which measures greater than 90 degrees and less than 180 degrees.
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Acute, Right, and Obtuse Triangles. A right triangle has one angle that's 90° and a corner that looks like an L. Obtuse triangles have one angle that's greater than 90°. In acute triangles, all the angles are less than 90°.
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Two obtuse angles are congruent. Three lines intersect at one point. A plane contains three points. The supplement of an acute angle is greater than the complement of the same angle.
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Yes, PQRST is a scale copy of ABCDE because they have corresponding points and segments. No, PQRST is not a scale copy of ABCDE because the shape has been stretched and reduced in side creating smaller angles. Polygon PQRS is a scaled copy of polygon ABCD.
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Similarity. In order for two figures to be similar, they must have congruent (equal) corresponding angle measures and proportional sides. Dilations create similar figures because multiplying by the scale factor creates proportional sides while leaving the angle measure and the shape the same.
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Triangles don't exist. ... But triangles are like Santa Claus, the tooth fairy, and Beyoncé: too strange and perfect to exist in the actual world. By definition, a triangle is a two-dimensional figure (perfectly flat) with three sides (perfectly straight) meeting at three vertices (perfectly sharp).
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In an equiangular triangle, all the angles are equal—each one measures 60 degrees. An equiangular triangle is a kind of acute triangle, and is always equilateral. ... An obtuse triangle may be isosceles or scalene. In an acute triangle, all angles are less than right angles—each one is less than 90 degrees.
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['Nonagon.', 'Octagon.', 'Heptagon.', 'Hexagon.', 'Triangle.', 'Scalene triangle.', 'Right triangle.', 'Parallelogram.']
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An isosceles triangle has two lengths which are the same as each other, and two angles which are the same as each other. An equilateral triangle has three equal lengths, and all the angles are equal which means they are each 60°. A scalene triangle has three different length sides, and three different angles.
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There are three types of triangle based on the length of the sides: equilateral, isosceles, and scalene.
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The correct answer is: Congruent triangles. Explanation: Consider the top and bottom sides of the parallelogram parallel lines.