what triangle has two equal sides ?

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what triangle has two equal sides ?

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https://en.wikipedia.org/wiki/Isosceles_triangle

https://en.wikipedia.org/wiki/Isosceles_triangle
Isosceles triangle – Wikipedia
In geometry, an isosceles triangle ( / aɪˈsɒsəliːz /) is a triangle that has two sides of equal length. Sometimes it is specified as having exactly two sides of equal length, and sometimes as having at least two sides of equal length, the latter version thus including the equilateral triangle as a special case .

https://www.mathsisfun.com/triangle.html

https://www.mathsisfun.com/triangle.html
Triangles – Equilateral, Isosceles and Scalene – Math is Fun
Learn the names and properties of triangles that have two, two or no equal sides or angles. Find out how to calculate the area, perimeter and angles of any triangle using formulas and examples.
PolygonsQuadrilateralsPythagoras’ TheoremRight Angled TrianglesInteractive TrianglesCongruent Triangles

https://byjus.com / maths / isosceles-triangle

https://byjus.com / maths / isosceles-triangle
Isosceles Triangle – Definition, Properties, Angles, Area, Formula …
An Isosceles triangle is a triangle that has two equal sides. Also, the two angles opposite the two equal sides are equal. In other words, we can say that An isosceles triangle is a triangle which has two congruent sides. Suppose in a triangle ABC, if sides AB and AC are equal, then ABC is an isosceles where ∠ B = ∠ C.

https://www.khanacademy.org/math/cc-fourth-grade-math/plane-figures/imp-classifying-triangles/a/types-of-triangles-review

https://www.khanacademy.org/math/cc-fourth-grade-math/plane-figures/imp-classifying-triangles/a/types-of-triangles-review
Types of triangles review (article) | Khan Academy
An obtuse triangle has one angle that measures more than 90 ∘ and 2 acute angles. Below are examples of obtuse triangles . 31 ° 31 ° 118 ° 42 ∘ 104 ∘ 34 ∘ Want to learn more about classifying triangles? Check out this video. Problem 1A Classify P Q R by its angles. 112 ∘ 36 ∘ 32 ∘ P Q R Choose 1 answer: Acute A Acute

https://mathworld.wolfram.com/IsoscelesTriangle.html

https://mathworld.wolfram.com/IsoscelesTriangle.html
Isosceles Triangle — from Wolfram MathWorld
Il y a 4 joursAn isosceles triangle therefore has both two equal sides and two equal angles. The name derives from the Greek iso (same) and skelos ( leg ). A triangle with all sides equal is called an equilateral triangle, and a triangle with no sides equal is called a scalene triangle.

https://www.splashlearn.com/math-vocabulary/geometry/isosceles-triangle

https://www.splashlearn.com/math-vocabulary/geometry/isosceles-triangle
Isosceles Triangle – Definition, Angles, Properties, Examples – SplashLearn
1. Legs: The two equal sides of an isosceles triangle are known as ‘legs’. In the triangle ABC (given above), AB and AC are the two legs of the isosceles triangle. 2. Base: The ‘base’ of an isosceles triangle is the third and unequal side. In the triangle ABC, BC is the base of the isosceles triangle. 3.

https://brilliant.org/wiki/properties-of-isosceles-triangles

https://brilliant.org/wiki/properties-of-isosceles-triangles
Properties of Isosceles Triangles | Brilliant Math & Science Wiki
An isosceles triangle is a triangle that has (at least) two equal side lengths. If all three side lengths are equal, the triangle is also equilateral. Isosceles triangles are very helpful in determining unknown angles. In an isosceles triangle, the two equal sides are called legs, and the remaining side is called the base. The angle opposite the base is called the vertex angle, and the point …

https://www.omnicalculator.com/math/classifying-triangles

https://www.omnicalculator.com/math/classifying-triangles
Classifying triangles calculator
18 janv. 2024Isosceles triangle – has two equal sides; and Scalene triangle – has no equal sides. How to classify a triangle by its angles? There are three types of triangles based on their angles: If all of the triangle angles are less than 90°, then it’s an acute triangle; If one of the angles measures more than 90°, it’s an obtuse ; and

https://brilliant.org/wiki/isosceles-triangle-theorem

https://brilliant.org/wiki/isosceles-triangle-theorem
Isosceles Triangle Theorem | Brilliant Math & Science Wiki
An isosceles triangle is a triangle that has two equal sides. The isosceles triangle theorem states the following: This theorem gives an equivalence relation. In order to show that two lengths of a triangle are equal, it suffices to show that their opposite angles are equal. In fact, given any two segments …

https://www.khanacademy.org/math/cc-fourth-grade-math/plane-figures/imp-classifying-triangles/v/scalene-isosceles-equilateral-from-angle

https://www.khanacademy.org/math/cc-fourth-grade-math/plane-figures/imp-classifying-triangles/v/scalene-isosceles-equilateral-from-angle
Classifying triangles by angles (video) | Khan Academy
So if this is 40 and that is 50, these two add up to 90. So to add up to 180 degrees, this one must be a 90-degree angle. We can even mark it as a right angle. So if you have a triangle where all of the interior angles are different, that means that all of the side lengths are going to be different.
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