Hard for me to see the topic what is it called and what are you struggling with
A rigid transformation (also called an isometry) is a transformation of the plane that preserves length. Reflections, translations, rotations, and combinations of these three transformations are "rigid transformations".
Um Hi It is $90 so type $90
Yes, it is similar.
The scale drawing and the actual cover are similar because the scale drawing has been formed by shrinking the cover. The scale factor is 1/11, centered at the origin. This means that the ratio of the sides of the actual cover to the corresponding sides of the image is constant and equivalent to 1/11. Therefore, the drawings are similar.