Triangles

The app Triangles calculates all lengths and angles of the specified triangle depending on the following situations:

1) Given the coordinates of the 3 points

2) Given 3 line segments (s-s-s)

3) Given 2 line segments and the angle in between (s-a-s)

4) Given 2 line segments and the angle opposite to the longer one (a-s-S)

5) Given 2 angles and the line segment between them(a-s-a)

The cases 2) to 5) correspond to the sentences of congruence.

The calculated triangle will be drawn in a 2d-coordinate-system

Numerous options show up in a menu that appears when you tap on a line segment.

You may choose between the following objects:

- Mid Perpendicular

- Median

- Bisectrix of angle

- Height

- Incircle

- Circumcircle

- Thales circle

- Squares over sides

If selected, the objects are shown in the graphic.