GEOMETRY ACHAPTER 11ROTATIONS ASSIGNMENT 2
1. What type of transformations are isometries?Reflection, Translation, Rotation, any transformation that preserves distance.
2. If you reflect a figure over two parallel lines, the result is a translation.
3. A figure is translated with a magnitude of 25 cm. This is the same as a reflection over two parallel lines that are how far apart?
If a figure is reflected over two parallel lines, the resulting transformation is a translation. The magnitude of the translation vector is twice the distance between the two lines. If |v| = 25 cm, then the distance between the two lines is 25 2 = 12.5 cm.
5. If you rotate ΔABC 120° clockwise, then rotate ΔA’B’C’ 68° counter clockwise, describe the single rotation of ΔABC to result in ΔA’’B’’C’’.
120 – 68 = 52° clockwise
6. A’B’ is the image of AB rotated about point C.What is the angle of rotation?
AOA’ or BOB’ In what direction?
Counter Clockwise