Equilateral Triangle -- from Wolfram MathWorld
An equilateral triangle is a triangle with all three sides of equal length a, 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.
Triangles - Equilateral, Isosceles and Scalene
Equilateral Triangle . Three equal sides Three equal angles, always 60° . Isosceles Triangle . Two equal sides Two equal angles
How to construct (draw) an equilateral triangle with ...
This page shows how to construct an equilateral triangle with compass and straightedge or ruler. It begins with a given line segment which is the length of each side of the desired equilateral triangle.
Properties of Equilateral Triangles | Brilliant Math ...
An equilateral triangle is a triangle whose three sides all have the same length. They are the only regular polygon with three sides, and appear in a variety of contexts, in both basic geometry and more advanced topics such as complex number geometry and geometric inequalities....
Triangle - Wikipedia
By lengths of sides. Triangles can be classified according to the lengths of their sides: An equilateral triangle has all sides the same length. An equilateral triangle is also a regular polygon with all angles measuring 60°.
Interactive Triangles - Math is Fun
Interactive Triangles. Read about Triangles, and then play with them here. They rotate, too!So you can become familiar with them from all angles. Note: the three angles of a triangle add to 180°
IXL - Construct an equilateral triangle inscribed in a ...
Fun math practice! Improve your skills with free problems in 'Construct an equilateral triangle inscribed in a circle' and thousands of other practice lessons.
Area of equilateral triangle (video) | Khan Academy
Finding the formula for the area of an equilateral triangle with side s
What is the area rounded to the nearest tenth of a square ...
What is the area rounded to the nearest tenth of a square inch of an equilateral triangle that has a perimeter of 24 inches?
What is the perimeter of an equilateral triangle that ...
The perimeter (sum of the lengths of the sides) would be 3 x 2 cm = 6 cm *This is actually seeing if one knows the definition of equilateral.