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The app Triangles calculates all lengths and angles of the specified triangle.
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.