1 triangle is, in geometry, a three-sided polygon.
Understanding Triangles
A triangle is a fundamental shape in geometry. Let's break down what defines a triangle:
- Definition: According to geometrical principles, a triangle consists of three edges and three vertices.
- Key Property: A crucial characteristic of a triangle is that the sum of its internal angles always equals 180 degrees.
Basic Properties of a Triangle
| Property | Description |
|---|---|
| Number of Sides | 3 |
| Number of Vertices | 3 |
| Sum of Internal Angles | 180 degrees |
Examples of Triangles
Triangles can be classified based on their sides and angles. Here are a few examples:
- Equilateral Triangle: All three sides are equal in length, and all three angles are 60 degrees.
- Isosceles Triangle: Two sides are equal in length, and the angles opposite those sides are equal.
- Scalene Triangle: All three sides have different lengths, and all three angles are different.
- Right Triangle: One angle is a right angle (90 degrees).
