Which property of a rigid transformation is exclusive to rotations? the measures of the angles and sides in the preimage are preserved. a line segment connecting the image to the preimage forms a 90° angle with the center of rotation. the distance from each point on the image to the center of rotation is preserved. all the points on the image move along a parallel line when the preimage is transformed

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap