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Learn about triangles, a type of polygon with three sides and angles, in geometry. Find out the different types of triangles based on sides and angles, their properties, perimeter and area formulas, and solved examples.
- 6 min
A triangle is a polygon with three corners and three sides, one of the basic shapes in geometry. The corners, also called vertices, are zero- dimensional points while the sides connecting them, also called edges, are one-dimensional line segments. The triangle's interior is a two-dimensional region.
Learn about the triangle shape, its parts, properties, formulas, and types. Find examples, worksheets, and practice questions on triangles.
Learn what a triangle is, how to classify it based on angles and sides, and how to find its area and perimeter. Explore real-life examples, non-examples, and practice problems with interactive games and worksheets.
Learn about the six types of triangles based on their sides and angles, with diagrams and definitions. Find out the properties and examples of scalene, isosceles, equilateral, acute, obtuse and right triangles.
- 6 min
What is a Triangle? Definition: A triangle is essentially a polygon with 3 sides. From the figure we can see that a triangle has 3 vertices and 3 edges. In our daily life we come across various triangular objects such as a clothes hanger, a pizza slice, sandwich and so on. We use the ‘\ ( \triangle\)’ symbol to represent a triangle.
Learn about the different types of triangles, how to identify their angles and sides, and how to calculate their perimeter and area. Explore interactive examples and play with the dragging points to make your own triangles.
