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en.wikipedia.org/wiki/Isosceles_triangle

In geometry, an isosceles triangle is a triangle that has two sides of equal length. Sometimes it .... The bases of these two right triangles are both equal to the hypotenuse times the sine of the bisected angle by definition of the term "sine". For the ...

mathworld.wolfram.com/IsoscelesTriangle.html

This property is equivalent to two angles of the triangle being equal. An isosceles triangle therefore has both two equal sides and two equal angles. The name ...

www.mathsisfun.com/definitions/isosceles-triangle.html

Definition of. Isosceles Triangle. more ... Isosceles Triangle. A triangle with two equal sides. The angles opposite the equal sides are also equal. See: Equilateral  ...

www.mathsisfun.com/triangle.html

Equilateral, Isosceles and Scalene. There are three special names given to triangles that tell how many sides (or angles) are equal. There can be 3, 2 or no ...

In this lesson, you'll learn how an isosceles triangle's sides and angles make it unique. You'll also learn the theorem of isosceles triangles....

www.mathopenref.com/isosceles.html

Try this Drag the orange dots on each vertex to reshape the triangle. Notice it always remains an isosceles triangle, the sides AB and AC always remain equal in ...

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

Definition: A triangle is isosceles if two of its sides are equal. We want to prove the ... Theorem: Let ABC be an isosceles triangle with AB = AC. Let M denote the  ...

www.dictionary.com/browse/isosceles

Isosceles definition, (of a straight-sided plane figure) having two sides equal: an isosceles triangle; an isosceles trapezoid. See more.

www.merriam-webster.com/dictionary/isosceles%20triangle

Define isosceles triangle: a triangle in which two sides have the same length.