Welcome to the Triangles Page

Here Teachers,Parents and Students can find a collection of games and activities in order to help student to improve understanding in math skills such as the following:

  • Classify triangles.
  • Construct a Triangle
  • Simmilarity
  • Right Triangle
  • Isosceles Triangle
  • Equilateral Triangle
  • Obtuse Triangle
  • Scalene Triangle
  • Acute Triangle
  • Find missing angles in triangles.
  • The height of a Triangle

In a triangle, the three interior angles always add to 180°

A + B + C = 180°

Try it yourself (drag the points)

Equilateral Triangle

Three equal sides

Three equal angles, always 60°

Isosceles Triangle

Two equal sides

Two equal angles

Scalene Triangle

No equal sides

No equal angles

Acute Triangle

All angles are less than 90°

Right Triangle

Has a right angle (90°)

Obtuse Triangle

Has an angle >90°

Triangle test 1

Into answer box round Decimals to the Nearest Whole Number

Try it yourself (drag the points of triangles to change the angles and practise)