What is a Triangle?
A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted △ABC.
Types of Triangles
- Equilateral Triangle - All sides are equal, and all angles are 60°.
- Isosceles Triangle - Two sides are equal, and the base angles are equal.
- Scalene Triangle - All sides and angles are different.
- Right Triangle - One angle is 90°.
Triangles are used in various fields such as architecture, engineering, and astronomy. They provide structural strength and aesthetic appeal to designs.