math
10th Grade - Transformations

10th Grade lesson

9 - Transformations


Easy chapter. To rest a bit.

Translation

The image of the point A under the translation by the vector vector is the point A' below :
translation

Rotation

The image of the point A under the rotation around the center O and of angle x is the point A' such as OA = OA' and property rotation.
rotation

Axial symmetry

It is a symmetry with respect to a line.
symetry

Central symmetry

It's symmetry with respect to a point. The points AOA' are in a line and OA' = OA.
symetry

Homothecy

The image of the point A under the homothecy of center O and ratio k is the point A' such that property homothecy. On the drawing below, k = -3.
homothecy





>>> Lesson on trigonometry >>>


The transformations of the plane

lesson, problems