Triangle
The simplest polygon with 3 sides
What is a Triangle?
A triangle is a polygon with three sides, three vertices, and three angles. It is the simplest polygon and one of the most fundamental shapes in geometry.
Triangles are classified by their sides (equilateral, isosceles, scalene) and by their angles (acute, right, obtuse). In PerfectPoly, you'll practice drawing triangles from memory with precision.
Key Properties
- • 3 sides (edges)
- • 3 vertices (corners)
- • 3 angles (sum to 180°)
- • Simplest polygon
Practice Drawing Triangles
Test your precision by drawing perfect triangles from memory in PerfectPoly
Play PerfectPoly →Types of Triangles
Equilateral
All sides equal, all angles 60°
Isosceles
Two sides equal
Scalene
All sides different