Triangles

Here are explanations of, when it is a right-angled, congruent, isosceles, equilateral or right triangle formed

Equilateral triangle

Equilateral triangle

    • When a triangle has 3 pages with the same size, it is called equilateral.
    • When a triangle has 3 angles of the same size, it is called equilateral.
    • When a triangle is equilateral, then each of all its 3 angles always 60 degrees.

 

 

 

 

 

Ligebenet trekant

Ligebenet trekant

  • When a triangle has exactly 2 angles of the same size, called the isosceles.
  • When a triangle has exactly 2 pages with the same size, called the isosceles.

 

 

 

 

 

Right-angled triangle

Right-angled triangle

  • When a triangle having an angle of 90 degrees, it is called a right-angled triangle.

 

 

 

 

 

 

 

All Formed triangles

  • When two triangles have angles with the same size, call them for all formed. They have the same shape, but not all major.
  • If you only know the three angles, it can not be said of the triangles are Congruent, but they are all formed.

Congruent Triangles

  • When two triangles have 3 pages, which are pairs domestic large, call them for Congruent.
  • When two triangles have an angle to the adjacent pages, which are pairs domestic large, call them for Congruent.
  • When two triangles have two angles and the intermediate side, which are pairs domestic large, call them for Congruent.
  • When two triangles have two angles and a non-intermediate part, which are pairs domestic large, call them for Congruent.