Triangles are one of the fundamental shapes in geometry. They have three sides and three angles. Let's explore some common types of triangles and their properties.

Types of Triangles

  • Equilateral Triangle: All three sides and angles are equal.

    • Equilateral Triangle

  • Isosceles Triangle: Two sides are equal.

    • Isosceles Triangle

  • Scalene Triangle: No sides are equal.

    • Scalene Triangle

Properties of Triangles

  • The sum of the interior angles of a triangle is always 180 degrees.
  • The shortest side of a triangle is opposite the smallest angle.
  • The longest side of a triangle is opposite the largest angle.

For more information on triangles and geometry, check out our Geometry Basics section.