Equilateral Triangle
A triangle with 3 congruent sides
An equilateral triangle is a type of triangle where all three sides have the same length and all three angles are equal to 60 degrees. This means that the triangle has three congruent sides and three congruent angles. Equilateral triangles are a particular case of regular triangles.
Properties of Equilateral Triangle:
1. All three sides, a, b, and c, are equal in length.
2. All three angles, A, B, and C, are congruent and measure 60 degrees.
3. The sum of the interior angles of an equilateral triangle is always 180 degrees.
4. The altitude of an equilateral triangle splits the triangle into two 30-60-90 right triangles.
5. The circumcenter, incenter, centroid, and orthocenter of an equilateral triangle coincide.
6. The area of an equilateral triangle can be calculated as (a^2 * (sqrt(3))/4), where a is the length of one side.
All equilateral triangles are also isosceles triangles, making them symmetry around their vertical axis. Equilateral triangles can be identified by their distinctive properties, such as their equal angles and side lengths. Being one of the simplest geometric shapes, equilateral triangles are often used in geometry proofs, constructions, and in engineering applications.
More Answers:
Understanding Obtuse Triangles: Properties and ExamplesUnderstanding Right Triangles and the Pythagorean Theorem: A Comprehensive Guide.
Exploring the Characteristics and Formulas of Acute Triangles – A Guide for Math Enthusiasts