Triangle Trivia

Let's acquire some knowledge about Triangles

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.

In Euclidean geometry, any three points, when non-collinear, determine a unique triangle.

labelled triangle

In this example, there are 3 non-linear points named A, B and C which are the vertices of ABC. Triangles have 3 edges named AB, BC and CA respectively. The naming can be interchangeable i.e. an edge AB could also be referred as edge BA. In this example, we observe that the dimensions of this triangle are:-

  • AB = 3.27 units
  • BC = 4.74 units
  • CA = 4.48 units

Each triangle comprises of 3 angles. They are referred as follows:-

  • ABC or CBA or B = 65°
  • BCA or ACB or C = 41.38°
  • CAB or BAC or A = 73.62°

is it Triangle ?

Find Hypotenuse

Find Area of Triangle

Guess the third angle