Home 3. Intermediate Construction of two similar right angle triangles

Construction of two similar right angle triangles

Konstruktion af to ligedannede vinkelrette trekanter

Explanation:

Formed All triangles have the same size, but the same size angles.
Nogle walk can have goals on the one triangle, but not all measures of the candidate triangle.
In order to obtain the objectives, then one can construct another triangle using. line tool 'Segment between two points'- -button, ‘Skæringer mellem to objekter’--knappen og ‘Vinkelret linje’--button.

How to do:

  1. Construct one triangle (see CE. guides)
  2. Construct now the one hand,, as you know from the other triangle using. ‘Linjestrykke med given længde’--button. Insert the new line at the side, so it is parallel with and located above the hen “Matching” (same) side of one triangle.
  3. Use the 'Segment between two points'- -button, ‘Skæringer mellem to objekter’--knappen og ‘Vinkelret linje’--button to construct the last 2 sides of the second triangle.

 

Explanation of the equilateral, isosceles, all formed, congruent triangles.

ALL of the 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.

 

 

 

 

Isosceles TRIANGLE
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.

 

 

 

 

WRITTEN 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.