Equilateral triangle  Wikipedia
An equilateral triangle can be constructed by taking the two centers of the circles and either of the points of intersection. In both methods a byproduct is the formation of vesica piscis. The proof that the resulting figure is an equilateral triangle is the first proposition in Book I of Euclid's Elements.
Equilateral Triangle  from Wolfram MathWorld
Equilateral Triangle. An equilateral triangle is a triangle with all three sides of equal length , corresponding to what could also be known as a "regular" triangle. An equilateral triangle is therefore a special case of an isosceles triangle having not just two, but all three sides equal. An equilateral triangle also has three equal angles.
Area of equilateral triangle (video)  Khan Academy
Finding the formula for the area of an equilateral triangle with side s. If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.
Equilateral Triangle Calculator  Omni
The equilateral triangle calculator will help you with calculations of the regular triangle parameters. Whether you are looking for the equilateral triangle area, its height, perimeter, circumradius or inradius, this great tool is a safe bet.
3 Ways to Draw an Equilateral Triangle  wikiHow
To draw an equilateral triangle, start by laying a ruler on a piece of paper and drawing a straight line. Next, insert a compass at an end of the line you've just drawn and put a pencil at the other. Trace a quarter circle with the pencil end of the compass moving upwards, then switch the ends of the compass around.
Equilateral Triangle  Definition of Equilateral Triangle ...
Equilateral triangle definition is  a triangle in which all three sides are the same length.
Definition of Equilateral Triangle  Math is Fun
Math explained in easy language, plus puzzles, games, quizzes, videos and worksheets. For K12 kids, teachers and parents.
Mathwords: Area of an Equilateral Triangle
index: click on a letter : A: B: C: D: E: F: G: H: I : J: K: L: M: N: O: P: Q: R: S: T: U: V: W: X: Y: Z: A to Z index: index: subject areas: numbers & symbols
Construct Equilateral Triangle  MathBitsNotebook (Geo ...
Draw segments from A to B, B to C and C to A, to form the equilateral triangle. Proof of Construction: This construction uses the fact that an angle inscribed in a semicircle is a right angle, and that in a 30º60º90º triangle, the length of the short leg is half of the length of the hypotenuse.
Equilateral triangle  Simple English Wikipedia, the free ...
In geometry, an equilateral triangle is a triangle where all three sides are the same length and all three angles are also the same and are each 60°.If an altitude is drawn, it bisects the side to which it is drawn, in turn leaving two separate 306090 triangles
