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Isosceles triangle - Wikipedia

en.wikipedia.org/wiki/Isosceles_triangle

In geometry, an isosceles triangle is a triangle that has two sides of equal length. Sometimes it ... In the equilateral triangle case, since all sides are equal, any side can be ... which goes thro...

Right triangle ABC could also be an isosceles triangl - Answers.com

An equilateral triangle has all sides measuring the same and an isosceles triangle has 2 sides congruent, so they are not the same. Every equilateral triangle is ...

Right triangle definition - Math Open Reference

www.mathopenref.com/righttriangle.html

Notice it always remains a right triangle, because the angle ∠ABC is always 90 ... A right triangle can also be isosceles if the two sides that include the right ...

Properties of an Isosceles Triangle

www.math.washington.edu/~king/coursedir/m444a04/notes/02-PropertiesIsosTriangle.html

Theorem: Let ABC be an isosceles triangle with AB = AC. ... This can't be quite deduced from the B&B form of the axioms. ... AMB = angle AMC = right angle (so line MA is the perpendicular bisector of BC and also the altitude of ABC through A).

Math Scene - Triangles - Lesson 1 - Rasmus

www.rasmus.is/uk/t/F/Su55k01.htm

It is also common practice to label the side opposite angle A with a small a, ... If we know one angle in an isosceles triangle we can find the other angles. ... The sides of a right angled triangle ABC satisfy Pythagoras' rule, that is a<sup>2</sup> + b<sup>2</sup> = c<sup>2</sup> .

Right Triangle -- from Wolfram MathWorld

mathworld.wolfram.com/RightTriangle.html

Special cases of the right triangle include the isosceles right triangle (middle ... The inradius can be found by equating the area of the triangle DeltaABC ... are right triangles and the corresponding legs are equal, the hypotenuses are also ...

Greatest possible measure of ∠ A in an isosceles triangle A B C

math.stackexchange.com/questions/926367/greatest-possible-measure-of-angle-a-in-an-isosceles-triangle-abc

Sep 10, 2014 ... It also generally makes it a more interesting question, with no unnecessary ... Then you would have an isosceles right triangle, and B C , the ...

Can an isosceles triangle be an equilateral triangle? - Quora

www.quora.com/Can-an-isosceles-triangle-be-an-equilateral-triangle

The answer to the given question: “Can an isosceles triangle be an equilateral triangle? ... of an isosceles triangle, equilateral triangle ABC is also an isosceles triangle;² So, if we accept the ... Can an equilateral triangle be a right triangle?

Triangles - Developmental Math Topic Text

www.montereyinstitute.org/courses/DevelopmentalMath/COURSE_TEXT2_RESOURCE/U07_L1_T3_text_final.html

Identify equilateral, isosceles, scalene, acute, right, and obtuse triangles. ... You can call this triangle ABC or since A, B, and C are vertices of the triangle. ... or right based on their angles, they can also be classified by the length of their sides .

Right Angled Triangles - Math is Fun

www.mathsisfun.com/right_angle_triangle.html

A right angled triangle (also called a right triangle) ... triangle (I also put 90°, but you don't need to!) ... It has no equal sides so it is a scalene right angled triangle  ...