Class 2 - 3 to 5 axle vehicle. any Class 1 vehicle with a 1, 2 or 3 axle trailer. any Class 1 vehicle with a 1, 2 or 3 axle unit that straddles the vehicle body. a 3 or 4 axle RV with single wheels. a 3 or 4 axle limousine. tractor-trailer, car carrier or truck with 5 to 9 axles.
Plane figures and solids can be changed (or transformed) by translation, reflection and dilation. The symmetry of shapes is related to translation, reflection and rotation. Triangle ABC and its reflection A'B'C' have the same size and shape, that is they are congruent. A translation is defined by specifying the distance and the direction of a movement. For example, triangle ABC is translated by 2 units to the right. Triangle ABC and its image A'B'C' have the same size and shape.
The double reflections are equivalent to a rotation of the pre-image about point P of an angle of rotation which is twice the angle formed between the intersecting lines (theta). Remember that, by convention, the angles are read in a counterclockwise direction.